英语词汇“backing pump”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	backing pump
释义	backing pump un.前级泵；初级抽气泵；增效泵；旋转油泵 [网络]初级泵；预抽泵；前级真空泵
随便看	boghead (coal) boghead coal bogheads boghed boghedite bog hemp bog hemps boghole bog hole bog hopper boghouse bog-house boghouses bog-houses Boghrā Dam boghsom Bogia Bogic bogie bogie, aerodynamic bogie arm bogie beam bogie beam headstock bogie bolster bogie, bolster mounting

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