英语词汇“ball race”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	ball race
释义	ball race ball race n 1. (General Engineering) a ball bearing 2. (General Engineering) one of the metal rings having a circular track within which the balls of the bearing roll ball race ball race [′bȯl ‚rās] (design engineering) A track, channel, or groove in which ball bearings turn.
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