railway wheel and type mill

例句：

1. 1. The engineer inspected the railway wheel for wear and tear.
   工程师检查了铁路车轮的磨损情况。
2. 2.The train's wheels were made of steel, which is durable and strong.
   火车的轮子是用钢制造的，既耐用又坚固。
3. 3. The railway company has been upgrading its equipment to improve safety.
   铁路公司一直在升级其设备以提高安全性。
4. 1. The type mill was designed to process grain into flour.
   这种类型的磨坊被设计用来将谷物加工成面粉。
5. 2. The type mill is essential for grinding coffee beans.
   这种类型的磨坊对于研磨咖啡豆来说是必不可少的。
6. 3. The type mill is used in various industries to produce different types of products.
   这种类型的磨坊在各个行业中被用来生产各种类型的产品。