finish grinding短语¹⁴⁴⁹⁷²⁺² 基本例句 最后磨碎 The glossiness, roughness of ground surfaces and wheels wear are measured. The grinding wheels of rough grinding, finish grinding and polishing were test al for optimizing grinding wheel Properties. 通过磨抛试验，分析了粗磨和抛光前加工质量、精磨和抛光磨具等对抛光质量、磨削效率和磨具磨损的影响。 chemyq