The grindability of coal is an important parameter in pulverized coal utilization, and the HGI(Hardgrove Grindability Index) is relevant to the coal pulverization and the particle size distribution.
可磨性是煤加工利用过程中的一个重要指标，可磨性指数与煤的破碎机理、煤粒破碎后的粒度分布均有关系。
Suspension particle size distribution in produced water (PSD) can better represent the separation accuracy of treatment facility, and is of index significance.
出水中悬浮颗粒物的粒径分布(PSD)更能代表处理设施的分离精度，因而更具有指标性的意义。
The paper describes the importance of the particle size index of iron ore and points out some issues that are worth notice in the iron ore size inspection.
介绍了铁矿石粒度指标的重要性，并就铁矿粒度检验过程中需要注意的一些问题提出来供参考。
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