... 完全保留;完全顽存 complete retention 填满轨道 completed orbit 满﹝充﹞壳﹝层﹞ completed shell; closed shell ...
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The GPS IIF team completed a series of acoustic tests that replicate the noise levels expected during the spacecraft's launch into orbit.
GPS IIF团队完成了一系列声音测试,复制了太空船进入轨道预计将产生的噪音水平。
Russia has been celebrating the 50th anniversary of the first human space flight when the Soviet cosmonaut Yuri Gagarin completed a single orbit of Earth.
俄罗斯将庆祝人类首航太空50周年,苏维埃宇航员尤里加加林完成第一次太空飞行任务。
In low Earth orbit, say 220 miles (355 km) up, where most human space travel takes place, a single circuit is completed in a much brisker 90 minutes.
在近地轨道,例如高于地球表面220英里(355公里)处大多数人类太空旅行发生的地方,运行一圈则需要更短的90分钟。
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