磨细

例句：

1. 1. The mill is used to grind the grain into flour.
   磨坊用来把谷物磨成面粉。
2. 2. The chef uses a mortar and pestle to crush spices for the soup.
   厨师用捣杵和研钵将香料粉碎用于汤料。
3. 3. The engineer refined the metal to improve its strength.
   工程师将金属磨细以提高其强度。