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	WordReference Random House Unabridged Dictionary of American English © 2024 drill′ string′, Mining, Mechanical Engineering(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
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