英语词汇“beam pumping unit”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	beam pumping unit
释义	beam pumping unit beam pumping unit [′bēm ′pəm·piŋ ‚yü·nət] (petroleum engineering) A device used in sucker rod pumping which has a horizontal member (walking beam) that is worked up and down by a rotating crank to produce reciprocating motion.
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