矿石贫化率取决于放矿参数。
The ore dilution rate depends on the ore drawing parameters.
应用物元分析理论，建立了采矿损失、矿石贫化控制器，提出了分析和控制方法。
This paper set up controller for ore mining loss and ore dilution and put forward analytical and controllable methods by using the matter element analytical theory.
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.
降低了矿石的贫化损失，提高了回收率，减少了采矿成本，获得了良好的经济效益和社会效益。
The results were that the ore dilution and loss were decreased, the recovery was increased, the cost of mining was reduced, and good economic and social results were obtained.
爆力运矿采矿法具有采切比小、矿石损失贫化少、 经济效益好等优点。
In the mining system which conveys ore by blasting force, the ratio of mined tonnage to development is low and the ore dilution and loss are less, leading to good cost effectiveness.
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.
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.
龙首矿矿区内断裂构造极其发育，断层纵横交错，因而在采矿作业中，存在着一定的矿石损失和贫化。
In the mining area of Dragon Head Mine, the faulted structure is extremely well-developed with a crisscross of faults, thus resulting in a certain ore loss and dilution in mining operation.
该流程对我国类似资源贫化型矿山低品位矿石的预选，具有较好的借鉴作用。
This process is a good example and also a feasible way for other similar mines with same problems of low grade ore and diluted resources to follow.
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.
阐述了降低采矿中矿石损失与贫化的重要意义，并介绍了降低井下采矿损失与贫化的几项措施。
The paper explicates the importance of reducing loss and dilution of ore in underground mining operation, and introduces some measures for reducing loss and dilution of ore in mining underground.
通过对程湖铁矿三个分段生产情况的调查，找出影响程潮铁矿矿石损失贫化指标的因素。
This paper finds out the factors which affected the mine loss and dilution through investigation to the three subsection in Chengchao iron mine.
最后提出矿石损失贫化综合分析方法。
Finally the comprehensive analysis method for the ore loss and dilution is proposed.
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.
研究表明，造成无底柱分段崩落法来出矿石贫比大的根本原因在于采用了不合理的截止品位放矿方式，无贫化放矿是无底柱分段崩落法最为理想的放矿方式。
Research shows that main cause of ore dilution in sublevel caving mining is tlnrational cut-off grade drawing. Non-dilution ore drawing is most ideal drawing mede.
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.
从实际开采效果看，矿石的损失贫化较大，矿块生产能力较低。
From the practical mining effect, it is obvious that the loss and dilution rates are too large, and production ability is low.
从实际开采效果看，矿石的损失贫化较大，矿块生产能力较低。
From the practical mining effect, it is obvious that the loss and dilution rates are too large, and production ability is low.
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