Well, I checked and found out the achievements of my country's aerospace industry in the past 16 years: In the past 16 years, the Shenzhou spacecraft has flown into space 7 times, and 3 Chinese astronauts have gone into space. The speed shocks the world, and the achievements shine in space. China, a latecomer to the world's manned space club, has broken through and mastered major manned space technologies in the shortest time, established and improved a management system with engineering special management as its core, and has a young scientific and technological backbone team and preliminary Complete supporting infrastructure for the development and testing of manned space projects... 7 degrees of flight and 7 leaps. In 1992, the Political Bureau of the Central Committee of the Communist Party of China held an enlarged meeting of the Standing Committee and made a strategic decision to implement China's manned space projects. A three-step route for human spaceflight. Since then, China's manned space project has been officially established, code-named "Project 921". "Although we started late, we cannot copy. We must have technological progress with Chinese characteristics to catch up." Wang Yongzhi, the first chief designer of China's manned space project, said, "As soon as China's spacecraft takes to the sky, it will have to compete with foreign countries for 40 years. The spaceships of the year are flying together and are on par with each other. "Independent innovation and leapfrog development." It is under the guidance of this basic principle that Chinese astronauts strive to catch up. In just the past seven years, the highly safe and highly reliable Long March 2F carrier rocket has been ready for launch, the manned space launch tower towers in the desert, and the manned space measurement and control communication network and manned space landing site are ready. On November 20, 1999, my country successfully launched its first unmanned test spacecraft, Shenzhou-1, achieving a major breakthrough in traveling between space and earth. In the following three years, the test flights of three unmanned spacecrafts, Shenzhou 2 to Shenzhou 4, were successively successful. Launch, return, measurement and control, environmental control... key technologies have made breakthroughs one after another, and the technical status of the spacecraft is gradually getting closer to manning. "This is a very typical Chinese space program. They take a big step forward every time and rarely repeat flights." A foreign reporter said. In the golden autumn of 2003, 11 years after China's manned spaceflight project was officially launched, Chinese astronaut Yang Liwei took the Shenzhou-5 spacecraft and traveled in space for 14 times before returning to the ground safely. The Chinese nation realized its millennium dream of flying into space. Two years later, in another golden autumn, Chinese astronauts Fei Junlong and Nie Haisheng boarded the Shenzhou-6 spacecraft and returned to the ground after five days in orbit, achieving the first multi-person, multi-day space flight. On September 27, 2008, Chinese astronaut Zhai Zhigang conducted a spacewalk from the Shenzhou 7 spacecraft. China became the third country in the world whose astronauts can independently conduct spacewalks from a spacecraft independently developed by the country. 7 degrees of flying, 7 leaps. Each time you fire, you move forward one step. Continuous improvement and optimization in the practice of flying into space are the unique trajectory of China's manned spaceflight.