self sharpening 自行刃磨 ; 自动磨锐
self sharpening bit 自磨式钻头
self-sharpening bit 自锐钻头
self-sharpening blade 自磨刃式刀片
Self-sharpening high-carbon blades 自锐性高碳钢刀片
self-sharpening device 自动磨刀片装置
Toughness, high strength, self-sharpening abrasive.
韧性大，强度高，磨料自锐性好。
The durable, efficient, self-sharpening, protective, non-black surface, the high finish.
该产品耐用、高效、自锐、防堵、工件表面不发黑、光洁度高。
Abrasive grain makes up only 30% weight; its self-sharpening action is weaker, resulting in lower grinding efficiency.
磨粒只占总重的30%；其自锐性弱，因而磨削效率很低。
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