攻丝

• tap
• threading

参考释义

攻丝 [gōng sī]

• -
• 短语
  攻丝工人 tapper
  攻丝机 {机} threading machine; machine-working taps; tapper; tapping machine
  攻丝夹头 tap holder; tapping attachment
  攻丝孔 tapping hole
  攻丝卡盘 threading chuck
  攻丝螺钉 thread-cutting screw
  攻丝润滑剂 tapping paste; threading lubricant
  攻丝装置 chasing bar