英语词汇“hand feed”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	hand feed
释义	hand feed hand feed [′hand ‚fēd] (engineering) A drill machine in which the rate at which the bit is made to penetrate the rock is controlled by a hand-operated ratchet and lever or a hand-turned wheel meshing with a screw mechanism.
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