Based on abrasive wear theory and combined recent and ancient samples,the essential of the sharpness,wear resistance,sharpened-ability and self-sharpening performance of cutter were discussed.
以磨料磨损原理为指导 ,结合古今实例 ,讨论锋利刀片之锋利性、耐磨性、利磨性和自磨锐等问题的实质 ,给出明确定义 ,澄清一些模糊概念。
The improved design allows self-sharpening of both the running and fixed blades.
设计使动、定刀片皆可自磨锐,切割功率随时间增加反而有所下降。
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