roll mill pulverizer

例句：

1. 1.The roll mill is used to grind grain into flour.
   滚筒磨机用于将谷物磨成面粉。
2. 2. The pulverizer is responsible for breaking down the material being processed.
   粉磨机负责处理被加工的材料。
3. 3.The roll mill and pulverizer are essential components of a grain processing plant.
   滚筒磨机和粉磨机是粮食加工厂的必备设备。