英语词汇“propellant grain”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	propellant grain
释义	propellant grain propellant grain [prə′pel·ənt ‚grān] (materials) An elongated molding or extrusion, often of intricate shape, of solid propellant for a rocket, regardless of size.
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