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前孔 meaning in Chinese

frcntal pore

Examples

  1. Subland twist drills with morse taper shanks for holes prior to tapping screw threads
    攻螺纹前孔用莫氏锥柄多刃阶梯麻花钻

Related Words

  1. 前空转变
  2. 前空转轮
  3. 前孔径
  4. 前孔目
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