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。
Caving method is a high efficiency mining method widely used in underground metal mines. While it is a characteristic of the method that the loss rate and dilution rate is high.
崩落采矿法是金属矿山地下开采应用较多的一种高效采矿方法，覆岩下底部放矿损失贫化大是该采矿法的一个特点。
The dilution liquid of effervescent tablets and the dilution liquid of disinfection powder had a significant statistic difference in the rate of instruments corrosion.
泡腾片稀释液与消毒粉稀释液相比较其器械锈蚀率差异有统计学意义；
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