wash mill

例句：

1. 1.The factory uses a large washing mill to process the coal.
   这个工厂使用一个大型的洗煤厂来处理煤炭。
2. 2.They are using new technology in their washing mills to improve efficiency.
   他们在他们的洗煤厂中使用新技术来提高效率。
3. 3. The washing mill is located near the river, providing convenient transportation for workers.
   洗煤厂位于河边，为工人提供了便捷的交通。