英语词汇“differential screw”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	differential screw
释义	differential screw noun : a screw having two parts of slightly different pitch cut on the same barrel each working in a nut so that when the screw is turned the nuts have a very slow relative motion
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