45 years ago today, on May 18, 1980 (April 5, 1980 lunar calendar), China launched a carrier rocket. On May 18, 1980, our country launched the first carrier rocket into the predetermined waters of the Pacific Ocean with complete success. The carrier rocket successfully completed a series of procedures such as separation of rocket stages, engine shutdown and separation of rocket head body at high altitude, and accurately flew along the predetermined orbit. Finally, it accurately entered the sea in the predetermined area. The successful launch of this carrier rocket is another new and important achievement in the field of cutting-edge science and technology after our country successfully launched atomic bombs, hydrogen bombs, missile nuclear weapons and satellites.