medium grinding

例句：

1. 1. The machine is designed to perform medium grinding operations.
   这台机器被设计用来执行中磨操作。
2. 2. The process involves medium grinding of the material before it is used in production.
   这个过程涉及将材料进行中磨，然后再用于生产。
3. 3. In this stage, the medium grinding is crucial for achieving optimal results.
   在这一阶段，中磨对于获得最佳结果至关重要。