fixed-feed grinding

例句：

1. 1. The machine is designed for the purpose of fixed-feed grinding.
   这台机器是为了固定进料研磨而设计的。
2. 2.The fixed-feed grinding process is crucial for the production of fine powders.
   固定进料研磨过程对于生产细粉至关重要。
3. 3.In the fixed-feed grinding process, the material is continuously fed into the machine and ground to a desired consistency.
   在固定进料研磨过程中，物料被连续送入机器并磨至所需的一致性。