基本解释[机] 麻花钻词组短语短语fluted or twist drill 麻花钻fluted d twist drill 麻花钻fluted or twist drill detail 麻花钻four -fluted twist drill 四刃钻Taper -shank lengthened fluted twist drill 锥柄加长麻花钻专业释义机械工程麻花钻