用于外齿轮加工的径向剃齿刀，其齿向曲线为内凹超越曲线，这给剃齿刀的刃磨带来了困难。
The tooth curve of a plunge shaving cutter for an external gear is a recess transcendental curve, so it is difficult to grind it.
凹底磨鞋可用于磨削井下小件落物以及其它不稳定落物。
The concave bottom mill shoe is used to grind downhole small objects and other unstable fallen objects.
凹底磨鞋可用于磨削井下小件落物以及其它不稳定落物。
The concave bottom mill shoe is used to grind downhole small objects and other unstable fallen objects.
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