This sort of factors sorting has a valid reference value for the emergency capacity grade evaluation and routine emergency management.
这种影响因素排序对应急能力等级评价和日常的应急管理都具有有效的参考价值。
Results of author's experiments show that this grade error tends to increase with the decrease of sampling volume and the increase of the boulder content as well as sorting coefficient of the placer.
笔者所做的砂金取样规格试验表明，砂金品位误差随着取样体积减小而增大。
Especially the use of strongly magnetic - the flotation process some mines hematite sorting reached grade iron ore, iron ore recovery satisfaction indicators.
尤其是采用强磁——浮选联合流程使一些矿山的赤铁矿选别达到了铁精矿品位，铁精矿回收率的满意指标。
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