英语词汇“payload assist module”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	payload assist module
释义	WordReference Random House Unabridged Dictionary of American English © 2024 pay′load assist′ mod′ule, Rocketry, Aerospacea U.S. solid-propellant rocket used to boost a medium-weight spacecraft from a circular low-earth orbit to an elliptical transfer orbit for later insertion into a geosynchronous orbit. Abbr.: PAM Cf. inertial upper stage. 1980–85
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