单词	parking orbit
释义	parking orbit noun : an orbit of a spacecraft from which the spacecraft or another vehicle may be launched on a new trajectory Word History First Known Use 1953, in the meaning defined above
随便看	bismaleimides Bismarck Bismarck Archipelago Bismarck herring Bismarck Range Bismarck Sea bismarckian bismarcks bismarks bismars bismillah bismillahs bismite bismoclite bismut- bismuth bismuth blende bismuth glance bismuth ocher bismuth oxide bismuth oxychloride bismuth spar bismuth sub bismuth subchloride bismuth subgallate

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