英语词汇“pumping jack”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	pumping jack
释义	pumping jack noun : a device over a deep well for operating a pump by belt power
随便看	allative all at once allatum alla turca allay allayment alla zingara alla zoppa all but all clear all-commodity rate all-court press all-day all-day sucker allectory alledge allee allee allee couverte allegany allegation allegation allegator allegatum allege

英语词典包含332784条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。