rubber lining of mill

例句：

1. 1. Themill is located in the heart of thetown.
   磨坊位于城镇中心。
2. 2. The millstones are still there after all theseyears.
   这些年过去了，磨石依然在那里。
3. 3. The millstones were used togrind the grain into flour.
   磨石被用来把谷物磨成面粉。