测定磨具硬度的方法，较常用的有手锥法、机械锥法、洛氏硬度计测定法和喷砂硬度计测定法。
Abrasive hardness measurement method, more commonly used are hand-cone method, mechanical cone method, Rockwell hardness tester hardness measurement method and blasting assay.
结果表明，玻璃纤维的加入不影响树脂磨具的硬度。
The results show that adding glass fibre does not impair the hardness of the grinding wheel.
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