They provide a constant depth of cut and fewer blade changes.

它们提供了切不断深入和减少叶片的变化。

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Thee three factors of cutting include cutting speed, feed and the depth of cut.

切削用量三要素包括切削速度、进给量和（或叫吃刀量）。

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Thee three factors of cutting include cutting speed, feed and the depth of cut.

切削用量三要素包括切削速度、进给量和（或叫吃刀量）。

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