The negative grading phenomena will lead to abnormal operation of the mill, and the fineness could hardly be controlled.

研磨体的反分级现象导致磨机不能正常生产，细度难以控制。

youdao

The negative grading phenomena will lead to abnormal operation of the mill, and the fineness could hardly be controlled.

研磨体的反分级现象导致磨机不能正常生产，细度难以控制。

youdao