选矿作业 meaning in Chinese

ore-dressing practice

Application of derrick fine screens in iron ore processing plants
高频振动细筛在铁矿选矿作业中的应用
Abstract : in view of the unrational consumption of the auxiliary materials in mining and beneficiation production , dea model is used to evaluate the utilization effect of the auxiliary materials and an application case is given
文摘:针对矿业采矿、选矿作业辅助材料消耗不合理的状况，采用一种dea模型评价该辅助材料的利用效果，并给出了应用实例。