The tool design, working methods and process fundamentals of the trepanning processing were introduced. It proved that trepanning processing is a more cost-effective and accurate method.
从套孔刀具的设计、加工方法以及套孔工艺的基本要求几个方面说明，套孔是一种更经济、有效并且精确的深孔加工方法。
The tool design, working methods and process fundamentals of the trepanning processing were introduced. It proved that trepanning processing is a more cost-effective and accurate method.
从套孔刀具的设计、加工方法以及套孔工艺的基本要求几个方面说明，套孔是一种更经济、有效并且精确的深孔加工方法。
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