英语词汇“rotary-percussive drill”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	rotary-percussive drill
释义	rotary-percussive drill rotary-percussive drill [′rōd·ə·rē pər′kəs·iv ′dril] (mechanical engineering) Drilling machine which operates as a rotary machine by the action of repeated blows to the bit.
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