When the cutter is rotated, the moving track of the curved cutter edge forms a plane.
切削刀具旋转时，曲线形刀具刃口的运动轨迹形成一个平面。
The cutting unit is provided with a particular arc-shaped cutting blade which is mounted on a cutter head and can be manually rotated.
切口器上有特殊弧形的切口刀，切口刀安装在刀盘上，且可手动旋转。
The cutting unit is provided with a particular arc-shaped cutting blade which is mounted on a cutter head and can be manually rotated.
切口器上有特殊弧形的切口刀，切口刀安装在刀盘上，且可手动旋转。
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