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-现代词典

单词	posigrade rocket
释义	WordReference Random House Unabridged Dictionary of American English © 2024 pos′i•grade rock′et (poz′i grād′),USA pronunciation [Rocketry.] Rocketryan auxiliary rocket used to separate the sections of a multistage rocket, fired in the direction of flight. posi(tive) + -grade (perh. modeled on retrograde) 1960–65
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