英语词汇“posigrade rocket”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	posigrade rocket
释义	posigrade rocket Astronautics and Astronomy noun A small rocket that can be fired briefly to give forward thrust to a spacecraft. Origin 1960s; earliest use found in The Aeroplane.
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posigrade rocket