英语词汇“wheel and axle”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	wheel and axle
释义	wheel and axle noun : a mechanical device consisting of a grooved wheel turned by a cord or chain with a rigidly attached axle (as for winding up a weight) together with the supporting standards — see simple machine
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