S. Navy's Mobile User Objective System (MUOS) constellation. It is the largest A2100 spacecraft core structure ever built by the company.
该系统将用于美国海军移动用户目标系统(MUOS)卫星群的第一颗卫星，它是该公司迄今为止建造的最大的A2100空间飞行器。
But NASA 's ambitious plans to put us astronauts back on the moon by 2020 to establish manned lunar bases for further exploration to Mars under the Constellation project are increasingly in doubt.
不过，NASA的雄心勃勃的计划将在美国宇航员重返月球，到2020年建立载人星座项目下进一步探索火星月球基地越来越令人怀疑。
But NASA 's ambitious plans to put us astronauts back on the moon by 2020 to establish manned lunar bases for further exploration to Mars under the Constellation project are increasingly in doubt.
不过，NASA的雄心勃勃的计划将在美国宇航员重返月球，到2020年建立载人星座项目下进一步探索火星月球基地越来越令人怀疑。
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