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	blacked black elderberry blacken black end blackened blackener black english Black English vernacular blackening blacker blackest blackey black eye blackeye blackeye blackeye bean black-eyed bean black-eyed pea black-eyed susan black-eyed susan vine blackeye pea blackface blackface black-faced black-faced highland

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