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-现代词典

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	tonneau tonneaued tonneau lamp tonneau windshield tonner tonnidae tonnish tono- tono tonofibril tonofibrilla ton of refrigeration tonogram tonograph tonographic tonography tonological tonology tonometer tonometric tonometry tonoplast tonoscope tonotaxis tonqua

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。