;
家;The first satellites placed in geostationary orbit were the synchronous communication(SYNCOM)satellites launched by NASA in 1963.
第
置在对地静止轨道的卫星是1963年美国航<>an class="key">空暨太空总署发射的同步传输卫星.
abbr. National Aeronautics and Space Administration 〈美〉国家航空和宇宙航行局
Project Description: Gulfstream Aerospace and NASA's Dryden Flight Research Center tested the structural integrity of a telescopic 'Quiet Spike' sonic boom mitigator on a NASA F-15B testbed aircraft.
湾流航空和宇航局德莱顿飞行研究中心测试的结构完整性的伸缩'安静斯派克'爆音缓和对美国航天局的F - 15B条试验飞机。
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narwhal, nary, n-ary, narzettine, NAS, NASA, nasaiism, nasal, nasal bone, nasal cavity,