英语词汇“bridge trolley”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	bridge trolley
释义	bridge trolley bridge trolley [′brij ‚träl·ē] (mechanical engineering) Either of the wheeled attachments at the ends of the bridge of an overhead traveling crane, permitting the bridge to move backward and forward on elevated tracks.
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