bitstock

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n.  手摇钻；钻柄

双语例句

  1. The cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press.
    钻机的切割部分；通常是尖头的有螺旋状图案并且可以更换，用在钻柱钻柄或钻床上。
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英英释义

noun

  1. a carpenter's tool having a crank handle for turning and a socket to hold a bit for boring

      Synonym:    brace

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