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jackscrew

英[\'d??kskru?]
美[ \'d??k,skr?]

基本釋義

n.
螺旋起重機(jī)

真題例句

At Pullman's signal, each man turned his Jackscrew the same amount at the same time, thereby raising the building slowly and evenly.

2015年高考英語(yǔ)湖南卷 閱讀理解 閱讀B 原文

英英釋義

Noun

  • 1. screw-operated jack

同義詞