medium-grinding

例句：

1. 1. The machine is designed for medium-grinding of materials.
   这台机器设计用于中磨材料。
2. 2.In the process of medium-grinding, the material will be evenly distributed.
   在中磨过程中，物料将被均匀分布。
3. 3.The medium-grinding process helps to improve the quality of the final product.
   中磨过程有助于提高最终产品的质量。