polygon milling attachment

例句：

1. 1.The polygon milling attachment is essential for precision machining.
   多边形铣刀附件对于精密加工至关重要。
2. 2. The engineer used the polygon milling attachment to create a complex design.
   工程师使用多边形铣刀附件创造了一个复杂的设计。
3. 3. The polygon milling attachment was used to cut through the tough material.
   多边形铣刀附件被用来切割这种坚韧的材料。