... 冷却排管 cooling grid 冷却研磨机 cooling grinder 冷却损失 cooling loss ...
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The superficial hardening of non-quenched steels had been carried out on a surface grinder, the influences of grinding mode and cooling conditions on the surface hardened layer were studied.
目的：测定涂布超硬石膏表面硬化剂有机硅树脂前后石膏模型的表面硬度和抗磨损性能，为该石膏表面硬化剂的临床应用提供依据。
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