磨料硬度 meaning in English

abrasive hardness

The loss with time was put forward to value dispersion . the second part is about classifying the super - fine powder . due to the abrasive grain being hard , seriously wearing the equipment and requiring the narrow - grade , a new - type of vertical multistage waterpower system was developed
针对磨料硬度大对分级设备磨损严重、磨料微粉属于窄粒级分级产品而设计出一种新型垂直式多级水力分级系统，该系统主要特点： 1 、垂直式多级分级。