dry grinding

例句：

1. 1. The grain was ground into flour using a dry mill.
   使用干磨机将谷物磨成面粉。
2. 2.Dry grinding is an effective way to reduce the amount of waste in the production process.
   干磨是一种有效的方法，可以降低生产过程中的废物量。
3. 3.During the drying process, the material is subjected to dry grinding to improve its quality.
   在干燥过程中，物料受到干磨处理以提高其质量。