英语词汇“rack-and-pinion elevator”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	rack-and-pinion elevator
释义	rack-and-pinion elevator rack-and-pinion elevator An elevator having electrically driven rotating gear pinions mounted on the car; rotation of the gear pinions moves the car up or down on a stationary gear rack which is mounted vertically in the hoistway.
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