英语词汇“hydraulic swivel head”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	hydraulic swivel head
释义	hydraulic swivel head hydraulic swivel head [hi′drȯ·lik ′swiv·əl ‚hed] (mechanical engineering) In a drill machine, a swivel head equipped with hydraulically actuated cylinders and pistons to exert pressure on and move the drill rod string longitudinally.
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