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美国空间和导弹系统组织提出了50多项有代表性的试验计划,以空间试验计划(STP)的形式报送国防部批准。批准的计划用数字表示批准的年份和该年的计划序号。并在数字之前冠以“P”表示主要,或冠以“S”表示次要。虽然尚不能得到全部空间试验计划的详情,但目前已经执行的P78-1、P78-2和正在形成的P80-1、P80-2,都已相当明确。前两颗卫星已先后用宇宙神、德尔他运载火箭送入轨道。后两项中的P80-1
The United States Space and Missile Systems Organization presented over 50 representative pilot programs submitted to the Department of Defense for approval in the form of a Space Experiment Program (STP). The approved plan shows the approved year and the plan serial number for that year by numbers. And preceded by a “P” before the figure, or a “S” by the crown. Although details of the full space trial program are not yet available, P78-1 and P78-2, currently in operation, and P80-1 and P80-2 being developed are quite clear. The first two satellites have been used to the universe God, Della carrier rocket into orbit. P80-1 in the last two