The reasonable grinding fineness was deter-mined and dressing index was predicted theoretically basedon the liberating regularity occuring in the grinding of use-ful minerals and vein minerals.

• 根据有用矿物及脉石矿物在磨矿过程中呈现的不同解离规律，通过解离分析确定合理的磨矿细度及对选别指标进行理论预测。