英语词汇“nodding donkey”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	nodding donkey
释义	nodding donkey nodding donkey n (Mining & Quarrying) informal (in the oil industry) a type of reciprocating pump used to extract oil from an inland well [C20: so called from its shape and movement]
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