钻孔装埋,打埋头孔( countersink的现在分词 );
Point-to-point systems are suitable for hole-machining operations such as drilling, countersinking, counterboring , reaming , Boring, and tapping.
点位系统适用于钻孔 、 锪 孔、扩孔 、 铰孔 、 镗孔 、 攻丝等孔加工.
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