我国新一代重型大推力运载火箭工程的研制取得了重大进展,“长征”系列运载火箭的型谱进一步完善,整体提升了发射航天器进入空间运行的能力。2006年以来,我国“长征”系列运载火箭共完成67次发射任务,把79个航天器成功地送入预定轨道,运载火箭的可靠性显著增强。未来五年,我国航天运输系统将实现“长征5号”、“长征6号”、“长征7号”运载火箭的首飞。同时,开展重型大推力运载火箭的专项论证和关键技术的预先研究。我国新研制的“长征5号”运载火箭将完全采用无毒无污染的推进 Significant progress has been made in the development of a new generation of heavy-duty high-thrust carrier rocket projects in our country. The type spectrum of the “Long March” series of carrier rockets has been further improved and the overall capability of launching spacecraft into space operations has been enhanced. Since 2006, a total of 67 launch missions have been completed by China’s “Long March” series of launch vehicles and 79 spacecrafts have been successfully put on track. The reliability of launch vehicles has been significantly enhanced. In the next five years, China’s space transportation system will realize the first flight of the “Long March 5”, “Long March 6” and “Long March 7” launch vehicle. At the same time, carry out special research on heavy payload thrust rocket and advance research on key technologies. China’s newly developed “Long March 5 ” launch vehicle will be entirely non-toxic and pollution-free propulsion