On this day, 87 years ago, July 4, 1938 (June 7, 1938, the lunar calendar), Long Lehao, an outstanding aerospace technology expert in our country, was born. Long Lehao (1938.7.4-) was an outstanding aerospace technology expert and missile rocket expert in my country. Participated in or presided over the development of launch vehicles in key national projects such as "331","861","941" and "942". The terminal speed adjustment scheme proposed by him for my country's first intercontinental missile is still in use today, laying a good foundation for improving the missile hit accuracy and the Long March rocket's orbit accuracy. When he was the first chief designer of the Long March-3 rocket, he was responsible for the research and design of pioneering topics such as the three-stage self-generated supercharging system, and implemented the "shrinkage fault" of the three-stage power system test and the correction measures for the secondary start fault in the first flight, achieving good results. He used a low-temperature propellant rocket to fill three consecutive times, leak two times, and ignite six times. This was the first in the history of rocket development in my country. This not only shortened the rocket development time by about one year, but also saved the country Tens of millions of scientific research funding. He worked hard and worked hard for this. He served as the chief designer and commander-in-chief of the Changjia Series of Rockets, comprehensively presided over the development work, and successfully developed a large-scale rocket group with many new technologies, great difficulty, and world-class level. It will be important to achieve my country's new generation applied satellite development strategic goals and expand aerospace. External exchanges and cooperation will surely have a far-reaching and significant impact. Not all Long Lehao encountered on his growth path were praises and cheers, nor was he a steady growth. Especially when he was appointed to serve as the chief designer of the "Changsanyi" rocket with the largest carrying capacity in my country. After more than two years of hard work, he truly felt what frustration was and what frustrations were. He has endured painful suffering and endured the pressure of Mount Tai. He had lost weight and his hair had turned gray. He faced the painful defeat and the pressure of various public opinion without losing heart or losing confidence. As a true aerospace science and technology worker, he did not fall into the quagmire of confusion and could not extricate himself. Instead, he was determined to rise up in frustration, lead his team, pool wisdom, and conduct in-depth analysis, dare to adhere to the truth, correct mistakes, and test repeatedly to minimize future failures or avoid failure. He comprehensively reviewed the overall technical plan of the rocket determined by him and once again determined that it was correct. On this basis, he conducted a comprehensive review around many aspects such as design, production, product quality control, and development management, and further adopted Effective measures to ensure flight success have completed 12 categories, 122 tests, proposed 44, and 256 improvement measures, ensuring the complete success of subsequent flight tests. While achieving major scientific and technological development for aerospace models, it has also achieved good social and economic benefits. The Chang3A and Chang3B carrier rockets won the 1998 National Special Award for Scientific and Technological Progress, and Long Lehao was the first person to complete it. In addition, he was awarded the "Outstanding Professional and Technical Talent Medal" and the "He Liang He Li Foundation Science and Technology Progress Award" by the Ministry of Personnel. In 2001, he was elected academician of China Academy of Engineering. Today, Long Lehao serves as the director of the Science and Technology Committee of China Academy of Launch Vehicle Technology. He continues to love his aerospace industry and is determined to build more high-quality rockets. He often says,"People are still in their sixties, and they are eager to create a famous brand." In addition, he also serves as a master of Shanghai Communications and an adjunct professor at Beijing University of Aeronautics and Astronautics. He focuses on educating and cultivating the next generation, and is determined to make more young people become outstanding talents who love the motherland, make selfless contributions, and bravely climb heights.