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	zoo- zoo zoo zooarium zoobenthos zoocecidium zoochlorella zoochore zoocultural zooculture zooecial zooecium zoo-ecology zooerastia zooerasty zooflagellate zooful zoogamete zoogeneous zoogenic zoogenous zoogeographer zoogeographic zoogeographical zoogeographically

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