英语词汇“pump by heads”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	pump by heads
释义	pump by heads phrasal : to pump (a well producing a small quantity) intermittently by allowing the contents to accumulate to a certain depth and then emptying the well
随便看	gannet gannetry gannister ganocephala ganocephalan ganocephalous ganoderma ganodont ganodonta ganodus ganoid ganoid ganoidal ganoidean ganoidei ganoidian ganoid scale ganoin ganoine ganomalite ganophyllite ganosis gansel ganser ganser syndrome

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