On November 15th, Guoya was officially listed at Guangzhou Auto Show. The guiding price of V6 version is 1.4 million yuan, and that of V8 version is 1.8 million yuan. The new car is equipped with a straight waterfall net, and the side of the car is decorated with a large number of chrome trim strips. The overall outline is similar to that of Bentley Feichi, and the length of the car is over 5.3 meters, which is larger than Bentley Feichi. Adopt China independent V6 TD/V8 TD+ independent electronic control system+intelligent four-wheel drive system, and support active steering of 18 rear wheels.

The audience said that Guoya’s gas field, configuration and texture are full, and the new car will be the pride of the country after it is equipped with the state guest team in the future.

Hongqi Guoya adopts a two-color body design, incorporating more rounded lines, using a unique hollowed-out design in the front enclosure, with a raised chrome decoration in the middle of the hood, and a lifting red flag brand logo on the front of the car, which supports lighting. The window is decorated with chrome, and there is a chrome-plated decorative strip under the door.

The interior details of Hongqi Guoya car adopt Chinese style design elements, and are equipped with the same auxiliary ring horn as the early Hongqi. The new car is equipped with a flexible scroll central control panel, a row of physical buttons below the central control panel, and a gear shifting mechanism. The car is decorated with a large number of solid wood plaques and equipped with double frames. The steering wheel is inlaid with sunflower LOGO in the middle, and the whole system comes standard with L2-level assisted driving.

The maximum power of Hongqi Guoya 3.0T HEV model is 290kW, and that of 4.0T HEV model is 360kW, matching with 8AT gearbox, with fuel consumption of 8.2L/100km and 8.8L/100km per 100km.

It’s a medium-sized model. I wonder how much you know about it. Let’s take a look at its performance.

First of all, from the appearance, the shape of the head of Haval’s second-generation big dog looks very round and sporty. Headlights are concise, and many interesting details can be seen from them. The car is equipped with LED daytime running lights, automatic opening and closing, adaptive far and near light, delayed closing and so on. Come to the car side, the car body size is 4705MM*1908MM*1780MM, the car uses simple lines, the car body looks very simple, with large-sized thick-walled tires, it looks full of sports. In the design of the rear end, the overall shape of the rear end of Haval’s second-generation big dog echoes the front end, the taillights are very round, and the unique exhaust pipe creates a good gas field.

Sitting in the car, the interior looks very fashionable and simple, and the overall design is very cold. The steering wheel of this car is very comfortable, and it is equipped with the functions of manual steering wheel up and down+front and rear adjustment, steering wheel heating, etc., which gives people a bright feeling. Let’s take a look at the central control. The car is equipped with a touch-sensitive LCD central control screen, which makes the interior design quite layered and looks sporty. Let Xiaobian introduce the dashboard and seats. The car is equipped with a cool dashboard, which is very eye-catching. The car adopts imitation leather seats, which are wide and thick and comfortable.

Haval second-generation big dog is matched with wet dual clutch (DCT) gearbox, with maximum power of 175KW and maximum torque of 385N.m, with good power performance.

Next, look at the configuration. The Haval second-generation big dog is equipped with car networking, driving mode selection, remote control key, Bluetooth key, rear wiper, engine start and stop and other configurations.

OK！ Next, let’s sum up. The model class introduced today is the most considered class when many people buy their first car, mainly because the size of this class is moderate and the price is reasonable.

　　Recently, Curtis Baldwin, a former foreign teacher of EF Education, an English training institution, was accused of sexually exploiting 12-year-old students in China.

　　Baldwin has been sued in the United States. On October 23rd, Weibo account @ EF Education issued a statement saying that Baldwin was dismissed in November 2019 for violating EF’s code of conduct for employees, and he immediately returned to the United States. The following month, the parents of a former student contacted EF Education and told them that Baldwin might have violated the law in contacting the student through social media in the United States. With the consent of parents, EF North American staff reported the case to the relevant US departments within one week.

　　The statement did not disclose why Baldwin violated the employee code.

　　In response to this matter, on the afternoon of 23rd, the public relations staff of EF Education Shanghai Headquarters responded to The Paper that Curtis Baldwin worked in EF from 2014 to 2019 as an English teacher. In November 2019, EF Education received a complaint against foreign teacher Baldwin, and the company immediately suspended him. The complaint has nothing to do with this case.

　　Regarding the content of the complaint, the publicist did not disclose it, saying that during Baldwin’s tenure, all classrooms of EF were equipped with security monitoring probes.

　　On 23rd, an expert on juvenile protection told The Paper that sexual exploitation is a kind of sexual assault in China’s current law, but the relevant provisions of the law are not comprehensive, for example, there is no provision for perpetrators to sexually exploit minors through the Internet.

　　Ef’s former foreign teacher was accused of sexually exploiting and spreading child pornography.

　　According to the contents of the indictment released by official website, the United States Department of Justice, on October 5th, 47-year-old Curtis Baldwin pleaded guilty in front of David Rush, the chief district judge of the United States, and he confessed to being accused of sexually exploiting minors and receiving and disseminating child pornography.

　　According to the indictment, the suspect Curtis Baldwin, from Springfield, Missouri, worked as an English teacher in EF Education China and left EF Education on November 20, 2019. After returning to Springfield, he contacted a 12-year-old female student who had previously taught in China through WeChat. According to the indictment, Baldwin threatened the girl by publishing naked videos.

　　In addition, according to the indictment, on March 10, 2020, federal agents executed a search warrant at Baldwin’s residence. A number of items were seized, and it was found that Baldwin’s Apple) MacBook Pro laptop contained child pornography files, including several videos of underage women in China having explicit sex.

　　According to the indictment, Baldwin may face at least 15 years in prison according to federal law. The case was filed by Ami Harshad Miller, an assistant U.S. attorney.

　　On 23rd, Lv Xiaoquan, a lawyer of Beijing Qian Qian Law Firm, told The Paper that the term "sexual exploitation" comes from the United Nations Convention on the Rights of the Child, and the concept is not directly put forward in China’s current laws, but the indecency and rape of children, the introduction, organization and forcing of minors to engage in prostitution, the production, publication, dissemination and reproduction of child pornography and the pornographic performances of children in the Criminal Law of People’s Republic of China (PRC) all belong to "sexual exploitation".

　　Niu Shuaishuai, director of the International Cooperation Department of Beijing Youth Legal Aid and Research Center, pointed out that there are many forms of child sexual exploitation, including child pornography, child sexual seduction, child prostitution and sexual extortion against children. Compared with sexual abuse of children, the word "exploitation" contains the meaning of "transaction", that is, there is some form of material or other immaterial transaction between the victim and the perpetrator or the third person.

　　Niu Shuaishuai told The Paper that in China’s current laws, sexual exploitation is a kind of sexual assault, but the relevant provisions of the law are not comprehensive, for example, there is no provision for perpetrators to sexually exploit minors through the Internet.

　　Girl protection expert: There are more and more cyber sexual assaults, so sex education should be strengthened.

　　The Paper noted that @ EF Education announced in its statement on October 23rd that the parents of the student had contacted the company, and informed that Baldwin had contacted the student through social media in the United States, and there might be illegal acts in communication. With the consent of parents, EF North American staff reported the case to the relevant US departments within one week.

　　Xu Hao, vice chairman of Beijing Zhongyi Public Welfare Foundation and member of the fund management committee of the "Girl Protection" public welfare project, said in an interview with The Paper that in this incident, the girl’s parents contacted EF Education after seeing the information, which is very correct and worth learning.

　　Xu Hao said that at present, there are more and more sexual assaults on the Internet. For example, sex-related activities in the form of videos, pictures, voices, and words can be regarded as sexual assaults on minors.

　　Faced with this phenomenon, Xu Hao said that parents need to strengthen supervision and teach their children how to prevent sexual assault. "Parents should pay attention to what their children are doing online and consciously help them identify what is harmful and inaccessible."

　　Xu Hao said that parents can set up interception software for their children’s daily computer and mobile phone terminals. In addition, in terms of sex education, parents should correctly guide their children, not "talk about sex change", and learn to distinguish which behaviors involve sexual induction.

　　Niu Shuaishuai suggested that on the issue of sexual abuse and exploitation of minors, the most important thing is to prevent the occurrence of such incidents, and to nip the bud of crime in the beginning by strengthening sex education. Niu Shuaishuai mentioned that Article 40 of the newly revised Law on the Protection of Minors stipulates that schools and kindergartens should carry out sex education suitable for minors, which is a major breakthrough in sex education for minors in the Law on the Protection of Minors.

　　In addition, Niu Shuaishuai suggested that an information inquiry system for criminals such as sexual assault, abuse, trafficking and violent injury should be established at the national level, and free inquiry services should be provided to units that are in close contact with minors, such as educational institutions.

From the perspective of body modeling, the feeling of this car is still so simple. The visual impact of the car continues the family design concept. The front face looks calm, and the headlights on both sides look quite simple. After the headlights are lit, they look very energetic. The side waist is still the unique line design of the public, and the enchanting figure is vividly displayed! Contribute to the outstanding shape. In the modeling part of the rear, LaVida adopts many popular design elements, and the taillight group also has a certain sense of advanced.

As far as the interior of the car is concerned, LaVida is warmer. The large plastic coverage of the plastic steering wheel brings a good sense of luxury. Soft plastic materials are used above the console, which greatly enhances the grade sense of the whole vehicle. The 8.0-inch display screen is simple in screen design, but fully functional. The front row is also equipped with manual air conditioning control system, which can freely debug the most comfortable space atmosphere. Leather seats give passengers just the right support and soft and comfortable touch.

LaVida has a car length of 4561mm, a car body width of 1740mm and a wheelbase of 2651mm, which is quite satisfactory. In the same class, LaVida’s wheelbase ranks 14th. As a compact car, its body size does not occupy much advantage in its class, and its internal seating space is only basically enough. After all, it is limited by the length and shape of the body. The design of skylight also increases the subjective space feeling of front and rear passengers. Among the models of the same price and class, LaVida’s trunk volume ranks seventh. The storage space in the car is quite satisfactory and basically sufficient. The interior space of the luggage compartment is relatively regular, with very good longitudinal depth and high expansibility, and the space performance is generally ideal.

LaVida’s new 1.5L automatic version uses a 1.5 engine, with a maximum horsepower of 110 and a peak torque of 141, matching the automatic manual transmission (AT). It will definitely bring unforgettable control charm. Ranked third among compact car models with more than 800,000.

LaVida’s active/passive safety configuration is complete, includingAutomatic parking、Zero tire pressure endurance tire、Automatic parking、Steep slope descent、hill start assist control、knee airbag、HUD head-up display、Anti-lock braking (ABS)、Braking force distribution (EBD/CBC, etc.)、Brake assist (EBA/BAS, etc.)、Traction control (ASR/TCS, etc.)、Active noise reduction、Engine start and stop、Side safety air curtain、Wireless charging of mobile phone、night vision system、LED daytime running lights、Forward reversing radar、Tire pressure monitoring、Steering wheel heating、Body stability control (ESP/DSC, etc.)、Rear reversing radar、Fatigue reminder、Remote parking、Child seat interface、Lane keeping (LKAS)Equal configuration.

Among them,Automatic parkingYou can avoid stepping on the brakes for a long time or needing to pull frequently;Steep slope descentCan safely pass through steep slope road conditions at low speed;knee airbagReduce the injury of the car interior to the occupant’s knees in the secondary collision.

In order to get a more comprehensive and objective understanding of LaVida, you can go to the LaVida forum and browse the messages of users who have bought the car in history.

Dongfeng Warrior officially announced the pre-sale price of 917 Jiaolong Armor and its enhanced version of Jiaolong Armor Max, which were 768,000 yuan and 868,000 yuan respectively, 130,300 yuan higher than that of ordinary extended-range models. The new car uses a large number of aviation-grade carbon fiber materials, which makes the carbon fiber coverage rate of the whole car reach 22.3%, and the body size has also increased. The model is painted in desert storm yellow, and the silver roof contrasts, showing a more domineering shape than the tank 800.

The appearance of 917 Xiaolong armor has been significantly upgraded, including replacing it with a straight waterfall-type middle net, increasing the air intake area, adding two raised ridges to the machine cover, and the front and rear wheel covers are made of carbon fiber and equipped with round cake-type closed wheels. The car side retains the traditional door handle design, and adds side boxes and storage racks, and the roof is equipped with an expansion platform. The tail design includes split taillights and full-size AT spare wheel frame.

In terms of interior, 917 Xiaolong Armor is equipped with a 12.3-inch suspended LCD instrument, a 15.6-inch suspended touch control panel and a 12.3-inch passenger entertainment screen, equipped with four multi-function steering wheels, streaming rearview mirrors, leather stitching seats, physical function buttons and traditional air conditioning outlets. The central armrest box, door panel and center console are decorated with a large number of carbon fiber cover plates, highlighting the identity of its high-performance car.

In terms of power system, the maximum power of 917 Jiaolong armor range extender reaches 145kW, the total motor power is 600kW, and the peak torque is as high as 1050 N m. Matching the Contemporary Amperex Technology Co., Limited ternary lithium battery pack of 65.8kWh, the CLTC has a pure battery life of 200km and a comprehensive battery life of 1026km. The new car also comes standard with a T-MAX professional electric winch, which can provide a pulling force of up to 12,500 pounds and enhance the off-road capability.

On the evening of December 27, the Long March 5 remote three carrier rocket was successfully launched. Guo Wenbin/photo

　　Qian Xuesen, known as the father of China Aerospace, once said: If scientific experiments can be successful every time, then why experiment? After setbacks and failures, we will become smarter.

　　The "Phoenix Nirvana" trip of the Long March 5 is the best example at present.

　　Two years ago, the second launch of the Long March 5 was defeated. This news hung over the hearts of Chinese people like a haze, and once caused doubts. Today, the largest rocket in China has been reborn for more than 900 days, and it has gone out again.

　　On December 27th, the Long March 5 started its third flight at Wenchang Space Launch Site, accompanied by a roar that shook the mountains. A dazzling flame surrounded the big rocket and flew out of the sky. In the end, the mission was declared successful, and this big rocket was dormant for two years, and finally it was proud!

　　Behind the soaring, it can be described as "twists and turns". In the words of Long Lehao, academician of China Academy of Engineering and chief designer of Long March series rockets of the First Academy of China Aerospace Science and Technology Corporation, "Failure is almost success, and success is almost failure" — — Over the past two years, more than 900 days and nights, China astronauts dare not take it lightly every moment.

　　Soul-stirring 2 hours and 43 minutes

　　Long March 5 is a rocket destined to be extraordinary from birth, which has entrusted too many people’s dreams and long-cherished wishes. For a long time, when it comes to the development of a certain technology or a certain field in China, people have become accustomed to using "big but not strong" to describe it. But aerospace is breaking this statement, and the first punch to break this statement is the Long March 5 — — It is equivalent to the admission ticket of a "space power". Its development difficulty can be imagined.

　　As early as 1986, the demonstration of a new generation of launch vehicles was carried out in China. Since the mid-1990s, the research on a new generation of rocket engines has been put on the agenda. In 2016, a new generation of big rockets developed after 30 years of demonstration — — The first flight of Long March 5 was successful, which attracted much attention.

　　However, behind the success of the first flight, there was also an episode of "almost failure".

　　Hu Xudong was the commander of the first flight mission 01 of the Long March 5. He still remembers that it was November 3, 2016, and the launch time was postponed from 18: 00 to 20: 43. In the meantime, it experienced six suffocating time resets, and even faced the test that the launch mission was forced to cancel.

　　People who watched the launch thus remembered the special moment of "near misses" and gained a somewhat more intuitive understanding of this rocket, which kicked off the era of China Grand Carrier.

　　When the time was set back to 17: 30 on the same day, the atmosphere in the test hall suddenly became tense, and hundreds of scientific and technological personnel looked at the big screen together — — The rocket "has a fever" because the primary circulation precooling pump of the rocket can’t be started normally. At the moment, the temperature displayed on the big screen is 238K, which is much higher than the take-off standard of 110K … …

　　According to Hu Xudong’s recollection, at this time, the mission headquarters decided that if the pre-cooling effect of the engine could not meet the launch conditions by 19: 30, the propellant leakage procedure would be started and the launch mission would be cancelled.

　　At 19: 28, there were only two minutes left from the "bottom line", the engine temperature dropped to a predetermined value, and the rocket successfully "cooled down".

　　"Set the ignition time to 20: 40." Hu Xudong exhaled a sigh of relief greatly. However, even at the last minute before the launch, emergencies have occurred again and again.

　　At 20: 40, only one minute left before the final launch, Hu Xudong just issued the password of "1 minute preparation", and suddenly heard Wei Kang, the commander of the control system, issue "the most awesome password in China’s space history": "01, stop launching!"

　　"What’s the matter?"

　　At this moment, Hu Xudong involuntarily stood up and blurted out 1.

　　Ten seconds before the launch, Hu Xudong began to count down, and suddenly he received a request from Wei Kang "Please wait a moment".

　　"Stop the launch!" Hu Xudong stopped emission process, and once again organized the troubleshooting. The problem was finally solved.

　　The "ignition" password was finally issued and the rocket took off.

　　Behind the cheers, astronauts including Hu Xudong began to sort out and analyze the launch data, and they had to face 630,000 original data — — These are related to whether China Rocket can still "turn the corner" next time.

　　Guess the beginning but not the ending.

　　Long Lehao was on the scene for the first two launch missions of Long March 5. One of his obvious feelings is that although the first launch mission was successful, the "stumbling" three hours before takeoff seems to be more touching. He said: "This is inevitable. After all, this is a brand-new rocket and the situation is too complicated."

　　Accordingly, the second launch, for many people at the scene, "was originally very smooth." "Before taking off, it was not as thrilling as the Long March 5 Yaoyi (the first flight mission, reporter’s note, the same below)." Long Lehao said that the launch site of Yaoer was "much calmer" and "much better" in the first few minutes.

　　At that time, he was still thinking, "This may be the first tortuous experience, exposing some problems, and then doing a lot of improvement work, having experience and a relatively stable mentality."

　　Indeed, after the Long March 5 took off from Wenchang Space Launch Site for the second time, everything was normal in the first few minutes. But after flying for more than 300 seconds, the problem appeared.

　　"All of a sudden, the flight curve of [Long March 5] is not quite right … …” In the test hall of Wenchang Space Launch Site, Long Lehao saw from the big screen that the curve was not going up in their predetermined direction, but was "falling" down.

　　His mind is tight: the flight curve falls, which means that the rocket is gradually losing thrust. If the thrust is not enough, the rocket will have no acceleration and will not be able to overcome the gravity field.

　　"At that time, I had a presentiment that ‘ It’s over ’ This launch is going to fail … …” Long Lehao said.

　　The measuring hall was silent.

　　A monitoring team member at the scene told reporters that their hearts, like the flight curve on the big screen, "kept falling", and many people silently shed tears.

　　That night, Xinhua News Agency released the news of mission failure.

　　"This result is what no one wants to see." Long Lehao said that he soon told himself that the failure of scientific experiments was inevitable. What we need to do now is how to find out the cause of the failure as soon as possible, take measures, try to go around as soon as possible, and prove once again that our rocket is trustworthy with practical actions.

　　That night, when Long Lehao left the test hall, he didn’t have much communication with the space junior on the spot. But he believes that these young astronauts have the ability to withstand the pressure. "Now it does seem that they are not overwhelmed by difficulties — — Get down and still stand up! " Long Lehao said.

　　What’s the problem with the engine again?

　　On April 16, 2018, the National Space Administration released the investigation on the failure of the Long March 5 remote rocket, which mentioned that the Long March 5 remote rocket suddenly failed when it flew to 346 seconds.

　　The cause of the failure is that the turbine exhaust device of the first unit of the core-stage liquid hydrogen and liquid oxygen engine is abnormal in the local structure under the complex mechanical and thermal environment, and the engine thrust drops sharply instantly, resulting in the failure of the launch mission.

　　Engine is also an engine. Yes, this word, which once stung the Chinese people’s key technology in the aviation field, has become a stumbling block in the aerospace field this time.

　　A big rocket is naturally inseparable from a big thrust, and a big thrust is inseparable from the development motivation. Before the Long March 5, the maximum thrust of a single rocket engine in active service in China was only about 70 tons, so it was "inadequate" to launch a very large spacecraft.

　　A new type of high thrust engine came into being. According to Zhou Limin, secretary of the Party Committee of the Sixth Academy of China Aerospace Science and Technology Corporation, after 15 years of unremitting research, eight newly developed 120-ton liquid oxygen kerosene engines were assembled on the four boosters of the Long March 5, and four newly developed hydrogen-oxygen engines were assembled on the first-class and second-class rockets.

　　He has an image saying that developing an engine is as difficult as climbing Mount Everest. "Some foreign experts say that even if we design it, we can’t make it." Among them, the hydrogen-oxygen engine that failed in the remote second mission is even more difficult.

　　Zhou Limin still remembers that in the face of brand-new engines, the research team began to tackle scientific and technological problems day and night, and dozens of new materials and more than 100 new processes were overcome one by one. However, the starting of the engine has become the biggest obstacle.

　　He said that in the starting stage, the whole engine is in an unstable dynamic process, because the speed changes from a static state to tens of thousands of revolutions, and the temperature changes from a low temperature state to a high temperature state. Our control sequence is controlled in milliseconds, and any action that is not well coordinated and fails to achieve the expected result may lead to failure.

　　At first, the development team was hit hard. After the prototype of the engine used in the first flight of Long March 5 was developed, its test results failed four times in a row: two starting explosions and two burning gas systems.

　　Zhou Limin said that these have dealt a great blow to the confidence of the entire research and development team and design team. "Many people dream of the explosion scene in their dreams, and they can’t eat or sleep well."

　　Find out the "devil" and destroy the "enemy"

　　And these are just the "pains" that China astronauts encountered in the engine development stage. After the failure of the Long March 5 Tele-2 mission, the pressure faced by these people became even greater, and they even called the faulty engine problem "the devil".

　　A test team member of the Sixth Academy of China Aerospace Science and Technology Corporation told the reporter that in order to find out the "devil" and destroy the "enemy", the development team has suffered unprecedented hardships, hardships, twists and turns and doubts in the past two years. The experience of tempering, struggling, struggling and tackling key problems is also rare in the history of development. Especially those "demons" who are hidden deep, the tension and complexity of the battle are unprecedented.

　　“‘ Devil ’ It pops up from time to time, blinding the development team’s sight, and even pushing them into the endless abyss of opaque. However, the development team was not intimidated by the darkness and was not defeated. " Zhou Limin said.

　　According to the statistics of the Sixth Academy of China Aerospace Science and Technology Corporation, in the second and third quarters of 2019 alone, the development teams of 11 hydrogen-oxygen engines in Beijing of the Academy worked overtime for 23,000 hours, and finally found out the "devil" hidden in the engine and eliminated the "enemy" who was recalcitrant, eliminating hidden dangers and eliminating faults.

　　Li Dong, the chief designer of the Long March 5 rocket, told the reporter that after the failure of the Long March 5 rocket, after more than 100 days of troubleshooting and positioning, and more than 180 days of experimental verification, the reason for the failure was finally confirmed. After that, according to the conclusion of fault investigation, the development team improved the design of the first-stage hydrogen-oxygen engine, and adopted corresponding improvement measures from the aspects of structure, materials and technology, which improved the adaptability to the flight environment.

　　The cause of the failure was found, identified and improved. Everything seems so smooth.

　　However, new problems have come again.

　　The process of returning to zero is full of twists and turns

　　On November 30, 2018, the improved core-stage hydrogen-oxygen engine had problems during the long-distance test run.

　　Li Dong told reporters that this time the astronauts responded faster. According to the cause of the failure, the development team improved the local weak links of the engine and improved the dynamic strength margin of the structure.

　　On March 29, 2019, the zeroing work and improvement verification of engine test failure were all completed — — The two long-distance test runs passed successfully, and the second problem was solved in this way.

　　But soon, they ushered in the third "encounter."

　　On April 4, 2019, when the final assembly of the Long March 5 remote three rocket entered the final stage, an "abnormal vibration frequency" appeared in the process of analyzing the test data of a core-stage hydrogen-oxygen engine used for subsequent tasks.

　　It can be described as twists and turns, once again verifying that sentence: the road to scientific exploration has never been smooth.

　　"Without a trace of doubt!" Li Dong said that the developers followed the trail and found the crux of the problem — — The local structure of the engine is very sensitive to the complex mechanical and thermal environment, and it is easy to cause resonance. Once excited, it is not easy to decay.

　　In July 2019, the developers completed the structural improvement of the engine and completed more than a dozen large-scale ground tests.

　　At this point, the engine problem that has plagued the Long March 5 for more than two years has finally been investigated.

　　According to the statistics of the First Academy of China Aerospace Science and Technology Corporation, the Long March 5 was defeated by Yaoer on July 2, 2017 and successfully launched by Yaosan on December 27, 2019, which lasted for 908 days and carried out more than 40 key technical tests.

　　After 908 days and nights, I got up again after countless falls. And the biggest "hard bone" — — The hydrogen-oxygen engine has also completed the phoenix bath fire and nirvana rebirth in more than two years.

　　According to Long Lehao, more than 900 days, such an interval — — It is a long time in the history of the Long March rocket to go beyond the period of the follow-up flight after the mission fails. In his impression, there is not even a "return to zero" at such a long interval.

　　"We certainly hope that the interval will be shorter, but scientific research cannot change with subjective wishes." Long Lehao said that the failure of the Long March 5 rocket was due to the failure of a certain engine component under the interaction of complex mechanical and thermal environment — — This problem is deeply hidden, and it does not appear in most cases, but only occasionally. However, once it appears, it is a "disastrous result".

　　In his view, this "zeroing" finally caught this mischievous "devil", although it took a long time, it was worth it.

　　"We’re all suffocating."

　　In fact, it takes more than a few teams to find out the "devil" and "rebuild" the engine.

　　Yan Yong, deputy director of Beijing No.11 Institute of the Sixth Academy of China Aerospace Science and Technology Corporation, told the reporter that the failure to launch the Long March V Remote II rocket pushed the liquid power industry with the reputation of "golden power" to the forefront, and the failure of the first-class high-thrust hydrogen-oxygen rocket engine put the engine development team under tremendous pressure and test. With the help of the strength of the Group and the Sixth Hospital, the Institute has used all effective resources to carry out the zeroing work — — It can be said that this is a "national alliance" to tackle key technical problems.

　　"It’s the first time I’ve seen so many academicians get together!" Lv Wei, the quality supervisor of 11 universities in Beijing, said that he was most impressed by the evaluation. Twenty-five academicians and five university professors came to the site as invited experts to listen to the engine development work and put forward opinions and suggestions. Nearly 60 leading experts in the system also participated in the exchange and discussion.

　　In fact, after the failure of the mission two years ago, many people are also eager to try, looking forward to returning to the "battlefield" and showing their talents.

　　"If setbacks obscure the light of the road ahead, then use the unrepentant heart to light the fire at night!" Chen Jiwei, commander of the launching station system at Wenchang Space Launch Site, told the reporter that there was no frustration and discouragement, and everyone held their breath. All systems and posts rallied from scratch and immediately put themselves into the preparations for the rocket’s go-around.

　　Deduct the process again and again, anticipate and recall one by one, and operate the exercise again and again. The operation of the air compressor of a system in the station is not very stable, and the equipment manufacturer has repeatedly made dozens of improvement tests, but the problem still exists.

　　Many people have advised Chen Jiwei, "it’s not a restrictive factor, it’s almost enough." However, his answer is adamant. "The factors that affect the task must be solved without compromise!"

　　Today, the Long March V has finally won this "turn-over battle", and it has become the most iconic task of China Aerospace in 2019. This is not only because it determines the implementation of major engineering tasks such as the follow-up Chang ‘e V, manned space station and the first Mars exploration, but also because it presents the process of scientific experiments from failure to success to the public in such an intuitive way, which makes people feel moved and amazed.

　　In addition to Qian Xuesen’s sentence, Albert Einstein also had a "golden sentence" that was regarded as a standard by the scientific community. The general idea is that it is not a bad thing for a person to take detours and make mistakes on the road of scientific exploration, and it is not a shame. It is necessary to bravely admit and correct mistakes in practice.

　　Long March 5 did it. China astronauts did it.

　　China Youth Daily China Youth Network reporter Qiu Chenhui

　　At the just-opened Beijing Auto Show, its second production car made its debut. The new car is positioned as a medium-sized coupe, which will compete with models such as Krypton 007. It is reported that Extreme Vietnam 07 is expected to start delivery in the second half of 2024.

　　Extreme Yue 07 is the second model of Extreme Yue, which continues the design genes of the extreme Yue family. The overall lines are smooth and dynamic, and the overall proportion is also very harmonious. In terms of details, the low wind resistance wheel rim is equipped with a small-sized exterior rearview mirror and a hidden door handle, which can help the new car reduce the wind resistance. The front face of the new car adopts the common closed design of electric vehicles, and the integration of the front part is very strong. At the same time, it brings a good three-dimensional sense through the ups and downs of the lines, and the smooth daytime running lights are very chic.

　　The long and narrow through taillights at the tail are simple and durable, and the Y-shaped treatment on both sides echoes the headlight group, which has good recognition. The tail is also designed with a liftable electric tail, which improves the sports properties.

　　As for the interior, referring to the previous information, the new car adopts an embracing interior with colorful atmosphere lights, the steering wheel adopts a semi-radial design, and the car is equipped with a penetrating screen. The interior of the car has a very simple atmosphere, which is in line with the current market trend. Extreme Yue 07 is equipped with intelligent AI pixel headlights and voice functions inside and outside the car, allowing users to communicate and express their emotions humanely with AI intelligent partner SIMO.

　　Extreme Yue 07 also has outstanding performance in intelligence. Large-scale penetrating screen, 8295 chip and voice interaction system supporting AI algorithm will all appear on Extreme Yue 07. This means that car owners will be able to enjoy a smarter and more convenient technology experience. What’s more commendable is that Extreme Yue 07 will be upgraded in the form of "Yuegeng" at the software level to ensure that car owners always have the latest and most powerful functions.

　　The new car will still adopt a pure vision scheme to build a smart driving system. Extreme Vietnam is also one of the few domestic manufacturers that can realize the brand of NOA in urban areas without relying on lidar. Compared with lidar, the pure vision scheme will cost less, but it puts forward higher requirements for software. It is reported that after the new car is listed, the intelligent driving system can realize the national opening. This is the second brand that can be opened all over the country after Huawei.

　　In terms of power, the new car will be driven by pure electricity, and the parameters of power have not yet been announced. With reference to Pole Crossing 01, the maximum power of single motor version is 200kW. The maximum power of the dual-motor version is 400kW. From the point of view of battery life, the cruising range of CLTC of single motor +71.4kWh lithium iron phosphate battery is 550km. Single motor +100kWh ternary lithium battery has a cruising range of 720km under the comprehensive working condition of full charge CLTC. Dual-motor +100kWh ternary lithium battery has a cruising range of 660km under the comprehensive working condition of full charge CLTC.

LANTU’s first global strategic model attracts fans at the auto show.

On September 13, the global version was unveiled at the Turin Motor Show under the name "Courage". As an important model of the Chinese brand, the global version of the Courage appeared as the leader of the parade held in the urban area of Turin, attracting cheers from citizens and tourists along the way.

As the first global strategic model of Lantu, Lantu’s confidant has achieved comprehensive improvement in appearance design, interior layout and performance indicators.

Whether it is the fashion sense of the appearance or the luxury sense of the interior, Landu Zhiyin has broken the design shackles of traditional medium-sized cars and become the "new favorite" in the eyes of many consumers. In the domestic market, Landu Zhiyin’s pre-sale has been opened. With its excellent battery life, leading charging technology and intelligent configuration, it has quickly attracted widespread attention and formed a strong competition with popular models such as Tesla in the market.

Relying on the "985" hard-core three-power system carefully built by Lantu Automobile, Lantu’s confidant has solved users’ concerns about the battery life of electric vehicles. The cruising range under CLTC conditions is as high as 901 kilometers, surpassing competitors of the same level. At the same time, Lantu’s confidant global version is also equipped with a global 800V high-voltage silicon carbide platform and 5C super fast charging technology, which makes the vehicle can be charged and driven 515 kilometers in 15 minutes, greatly shortening the charging waiting time and making daily commuting and long-distance driving more convenient and worry-free.

In the field of intelligence, Landu’s confidant is equipped with Landu’s latest Kunpeng intelligent driving system and Xiaoyao cockpit, equipped with advanced configurations such as 15.05-inch OLED curved edge sliding screen and AR-HUD, providing the driver with an immersive control experience.

The global version of Lantu Zhiyin is based on the new self-developed pure electric platform, which is about 400,000 yuan, showing the strategic layout of Lantu Auto’s high-value products going overseas.

In the vast starry sky of cars, the Z9 GT is like a bright new star, shining with a unique light. It sets a new height for the new energy GT with the world’s first "Easy Three-way" vehicle platform. That amazing technological innovation brings an unimaginable driving experience, allowing us to enter the exciting world of the Z9 GT together.

The easy three-party technology platform carried by the Tengshi Z9 GT is like a wise magician, fusing the three-motor independent drive technology, the rear-wheel dual-motor independent steering technology, the VMC vehicle technology and the integrated technology of the whole CTB battery body. These four core technologies together create the excellent performance and extraordinary handling of the Tengshi Z9 GT.

The three-motor independent drive technology gives the vehicle a powerful power output. Imagine that when you step on the accelerator, the instant burst of power is like a surging tide, pushing the vehicle forward. Whether it is on the streets of the city or on the open highway, the Dengshi Z9 GT can easily handle it, showing the ultimate performance potential. About 1,000 horsepower, allowing you to feel unprecedented passion and speed during driving. 3-Second 100-kilometer acceleration is like an arrow from the string, gone in the blink of an eye.

The rear-wheel dual-motor independent steering technology brings an ultra-agile handling experience to the vehicle. On narrow streets, the Tensi Z9 GT can steer nimbly and easily avoid obstacles. At high speeds, the precise steering system allows you to control the vehicle more confidently and enjoy the pleasure of driving. The application of this technology has greatly improved the handling of the vehicle, making it easy for both novice and veteran drivers to handle.

The VMC vehicle motion control technology is like a careful guardian, always keeping an eye on the dynamics of the vehicle. It can automatically adjust the suspension, braking and power output of the vehicle according to different road conditions and driving needs, providing you with ultra-safe driving protection. Whether it is on slippery roads or rough mountain roads, the Dengshi Z9 GT can maintain a stable driving state, allowing you to drive with peace of mind.

The full range of battery body integration technology not only improves the safety of the vehicle, but also brings a lower center of gravity and better handling performance to the vehicle. The perfect integration of the battery and the body makes the structure of the vehicle stronger, but also reduces the overall weight of the vehicle. This not only improves the cruising range of the vehicle, but also makes the vehicle more stable during driving.

The five iconic core functions of the Easy Three-way Technology Platform, including extreme steering, compass turn-around, Easy Three-way Parking, low-attachment road stabilization system, and intelligent crab line, have brought the driving experience of the Z9 GT to a new height.

The ultimate steering function allows you to feel precise control during the driving process. Whether it is in a corner or in a straight line, the vehicle can quickly respond to your operation, allowing you to easily control the direction.

The compass turn-around function is a first-of-its-kind black technology. In a confined space, the Z9 GT can easily turn around like a compass, and the driving experience is fully mastered. This feature is undoubtedly a huge boon for drivers who often drive in the city.

The easy three-way parking function allows beginners to bid farewell to parking anxiety. Whether in a small parking space or in a complex parking environment, the Tengshi Z9 GT can park in a space and park easily. This function not only makes it convenient for users, but also improves the safety of parking.

The low attachment road stabilization system can automatically adjust the suspension and power output of the vehicle when encountering slippery, muddy and other low adhesion roads to maintain the stability of the vehicle. Let you drive with peace of mind in bad road conditions.

The smart crab ride function brings a more flexible driving mode to the vehicle. In special cases, the vehicle can drive sideways like a crab, providing you with more driving options.

Some people may ask, is the Z9 GT’s three-party technology platform really so amazing? The answer is yes. The application of this technology platform not only improves the performance and handling of vehicles, but also brings users a more intelligent and convenient driving experience. It is the crystallization of technology and innovation, and it is the future direction of the automotive industry.

In this era full of challenges and opportunities, the Z9 GT is leading the development trend of new energy GT with its outstanding technology and innovative spirit. It allows us to see the infinite possibilities of the automotive industry and makes us look forward to future travel.

Anyway,

[Autohome Suzhou Promotion Channel] brings you the latest news: the high-profile luxury SUV is going through an unprecedented promotion in Suzhou. At present, car buyers have the opportunity to enjoy up to 130,000 cash concessions, making the already cost-effective XT5 even more accessible. The starting price has been reduced to 242,700 yuan, which is an opportunity not to be missed. To learn more about the current discount range and lock in your favorite model, don’t miss clicking the "Check the car price" button in the quotation form. Let’s seize this wave of car buying opportunities and strive for more favorable car purchase conditions.

The Cadillac XT5 brings out the style of a modern luxury SUV with its unique design concept and exquisite craftsmanship. The front face design is full of power, and the streamlined silhouette shows the perfect combination of sports and elegance. The iconic shield-shaped air intake grille is inlaid with chrome decoration, which not only enhances the visual impact, but also highlights the distinguished identity of the brand. The overall style is stiff and the details are meticulously crafted, revealing a luxurious but technological style, which leaves a deep impression.

Focusing on its refined side design, the Cadillac XT5 has a body size of 4813mm*1903mm*1682mm and a wheelbase of 2857mm, ensuring a spacious interior. The side lines are smooth and dynamic, showing the elegance of a luxury SUV. The front and rear wheel tracks are 1645mm, providing good stability for the vehicle. The car is equipped with 235/65 R18-size tires, and the combination of tires and 18-inch wheels combines both comfort and visual power. Overall, the XT5’s side design balances power and aesthetics, showing the unique charm of the Cadillac brand.

The interior design of the Cadillac XT5 highlights the perfect fusion of luxury and technology. The exquisite leather steering wheel provides a comfortable grip and supports manual up, down and back adjustment, making it easy for the driver to adjust according to needs. The 8-inch central control screen not only has a clear display, but also integrates multimedia systems, navigation, phone and air conditioning functions, providing a convenient operation experience for the driver.

In terms of seats, the Cadillac XT5 is made of high-quality imitation leather and genuine leather materials. The seat is equipped with four-way adjustment including front and rear, backrest, height and waist support to ensure passenger comfort. The driver’s seat is also equipped with an additional electric memory function to meet the needs of personalized sitting posture. The second row of seats also supports front and rear adjustment and backrest adjustment to adapt to the riding needs of different passengers. In addition, the rear seats support proportional reclining, providing passengers with flexible storage space. The overall interior design focuses not only on practicality, but also on the creation of texture and luxury.

The Cadillac XT5 is equipped with a 2.0T engine with a maximum power of 174 kilowatts, a maximum torque of 350 Nm, and a power output of 237 horsepower. This engine, combined with a high-efficiency 9-speed automatic transmission, provides the driver with a strong and smooth driving experience.

Overall, the Autohome owner’s evaluation of the Cadillac XT5 was full of admiration for the appearance and internal comfort of the vehicle. He mentioned that the black body highlights the unique charm of the car, and the interior, although not made of genuine leather, still provides a comfortable ride experience, especially in cold weather. The owner also particularly emphasized the spacious space of the second row and the adjustable seat angle, which makes the passenger ride more comfortable. Although the middle seat is slightly stiff, this does not overshadow the overall charm of the XT5. Therefore, for consumers who pursue practicality and taste, the Cadillac XT5 is undoubtedly a worthy choice.