矿石贫化率取决于放矿参数。
The ore dilution rate depends on the ore drawing parameters.
采矿损失率和矿石贫化率是表征一个矿山企业采矿技术水平和管理水平的重要参数。
Mining loss and dilution are important indices that demonstrate the technology level of mining and management level of a mine.
对于急倾斜极薄矿脉的开采国内外最常用的采矿方法是浅孔留矿法，实践表明，该法存在人工劳动强度大、矿石贫化率高等缺点。
Through an exploratory survey of residual deposit in the sourthern zone of a copper ore mine, inclined thin veins with difficult occurrence and complicated mining conditions were discovered.
无底柱分段崩落法贫化大是由现行放矿方式造成的，改用不贫化放矿后可使矿石贫化率在回采率不降低情况下大幅度下降到8％以下。
High dilution for sublevel caving is caused by existing drawing mode. Using thd undilutiondrawing can greatly decrease the ore dilution below 8% without decreasing recovery.
从生产实践出发，阐述了降低采矿贫化率是提高矿石质量(品位)，提高矿山经济效益的有效途径之一。
From production practice of the mine, it is expounded that the decrease of dilution factor in mining is one of effective methods to improve the ore quality (grade) and economic benefits.
矿石的贫化率与损失率是矿山企业生产管理中的两项重要指标。
The ores dilution and loss rates are two important indexes in the mine.
矿石的贫化率和损失率较高，是造成矿产资源浪费和制约矿山企业经济效益的突出问题。
The higher dilation and loss rates can result in the waste of mine resources and restriction economic benefits of mine enterprises.
为提高矿石回收率，降低贫化率，目前胶结充填工艺在我国各大矿山得到了广泛的应用。
Cemented fill is widely used in big mines all over the country to enhance ore recovery and reduce dilution.
该方法提高了矿石的回采率，降低了矿石的贫化率，为矿山寻找出一条合理的开采方法。
This method can improve the ore extraction rate and reduce the ore dilution rate and has been found to be a rational mining method for the mine.
该方法提高了矿石的回采率，降低了矿石的贫化率，为矿山寻找出一条合理的开采方法。
This method can improve the ore extraction rate and reduce the ore dilution rate and has been found to be a rational mining method for the mine.
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