The cutter wings are provided with torsional angles, and the cutting edges of the cutter wings are of single-faced or double-faced arc shapes, tooth shapes or line shapes;
所述的刀翼设置有扭角，刀翼的刃口为单面或双面设置的弧形、齿形或线形；
The cutter wings are provided with torsional angles, and the cutting edges of the cutter wings are of single-faced or double-faced arc shapes, tooth shapes or line shapes;
所述的刀翼设置有扭角，刀翼的刃口为单面或双面设置的弧形、齿形或线形；
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