英语词汇“drill string”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	drill string
释义	drill string (on a drill rig) the assemblage of drill pipes that link the drill bit to the mechanism that imparts rotary or reciprocating motion. [1695-1705]
随便看	power station power steering power structure power supply power takeoff power tool power train Powhatan Powhatan Confederacy powwow Powys pox poxvirus Poyang poyntell Poynting-Robertson effect Poza Rica de Hidalgo Poznan Pozsony pozzolana pozzolanic Pozzuoli Poços de Caldas P, p PP

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