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航天技术是当前世界高级技术的重要领域之一。它综合航天、航空、电子、计算机、材料工艺等多项新技术于一体,推动多种学科发展,并给整个国民经济的发展带来巨大的经济效益。世界各航天技术大国无不重视这个领域的发展。运载火箭在其三十年的发展中,一直把降低发射费用做为研制的主要目标,现已取得了显著的成效。例如早期德尔它-E、侦察兵火箭每公斤有效载荷的发射费用为62500美元,现已降低到1/10—1/100,宇宙神半人马座、德尔它3920火箭每公斤的发射费用为6250～625美
Aerospace technology is one of the most important areas of advanced technology in the world today. It integrates a number of new technologies in aerospace, aviation, electronics, computer and materials technology to promote the development of various disciplines and bring enormous economic benefits to the development of the entire national economy. The major aerospace technology powers in the world all attach importance to the development in this area. In its three decades of development, the launch vehicle has been making the major goal of reducing launch costs a success and has achieved remarkable results. For example, in the early Delt-E, the cost of launching a scout rocket at a payload of $ 62,500 per kg was reduced to 1 / 10-1 / 100. Cosmic God Centauri and Deltas 3920 rockets cost 6250 ~ 625 US