英语词汇“roller bearing”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	roller bearing
释义	WordReference Random House Unabridged Dictionary of American English © 2024 roll′er bear′ing, [Mach.] Mechanical Engineeringa bearing consisting of cylindrical or tapered rollers running between races in two concentric rings, one of which is mounted on a rotating or oscillating part, as a shaft. 1855–60 Collins Concise English Dictionary © HarperCollins Publishers:: roller bearing n a bearing in which a shaft runs on a number of hardened-steel rollers held within a cage
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