【Key words】 beneficiation feed grade； loss rate； dilution rate； optimization；
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And it affects themilling recovery and concentrate grade. The optimum grade of crude ore can improve the benefitof mine and make use of mine resource.
矿石的入选品位在采选过程中具有承上启下的作用，既取决于矿体平均品位以及采矿过程中的截止品位和贫化率，又影响选矿回收率和精矿品位等选矿指标，最佳的入选品位有利于提高矿山的整体效益和矿产资源的利用率。
参考来源 - 截止品位与入选品位智能优化的理论与方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
金属矿山合理入选品位动态优化研究的技术关键是建立各种数学模型。
The technical key to the dynamic optimization study of the rational mill feed grade of metal mines is the establishment of various mathematical models.
在此基础上，进一步阐述了缓倾铋铜金矿脉对理论、应用研究及矿山确保铜和金入选品位的重要意义。
On the basis of this, we further expatiate on low-angle bismuth, copper and gold veins' the important meaning of theory and application and guarantee milling grade of copper and gold.
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