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N the cut made by a saw, an axe, etc 锯子或斧头的劈痕或切口
The dicing kerfs have been reduced to below 20 um in many cases, with no chipping on either front or backside.
在很多情况下，刻划宽度可以小到20um，上下都没有碎屑。
Phenomenon of erosion delay in forming kerfs by abrasive waterjet will cause kerf incline in straight cutting or kerf taper in circular cutting process.
磨料水射流加工在切口形成过程中出现冲蚀延时现象，从而在直线切割时形成切口斜度，在圆形零件切割时形成切口锥度。
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