three-lipped twist drillthree-motor tape transport mechanism三: three缘: reason麻花钻: fluted or twist drill麻花钻: [机械工程] fluted twist drill; twist-drill; auger-bit; double worm screw; milled twist drill◇麻花钻槽铣刀 cutter for fluting twist drills; twist-drill cutter; 麻花钻活钻头 finger rotary detachable bit; 麻花钻头 twist bit; twist drill bit; twist drill; 麻花钻心 twist web扁麻花钻: flat twist drill下载手机词典可随时随地查词查翻译
