Then it introduces several problems including flexographic printing's plate making, ink, groove cutting machine and so on.

介绍了柔性版印刷制版、油墨以及柔印开槽等系列技术问题。

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Manual programming is inefficient when using CNC pipe cutting machine cuts intersection lines with welding groove.

使用数控切管机切割带焊接坡口的相贯线时，手工编程效率低下。

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Because there exists a chip-curling groove on the rake face, the rake face of a modern cutting tool used on NC machine tool is not a plane, but a curved surface.

由于现代数控刀具都设计有卷屑槽，从而使其前刀面不是平面，而是曲面。

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