rail rolling mill

例句：

1. 1. Therailway rolling mill is a crucial part ofthe transportation infrastructure.
   铁路轧钢机是交通运输基础设施的重要组成部分。
2. 2. The new rail rolling mill hasgreatly improved the efficiency of the steel productionprocess.
   新的铁路轧钢机大大提高了钢铁生产的效率。
3. 3. The rail rolling mill is usedto produce high-quality steel products forvarious industries.
   铁路轧钢机用于生产各种工业所需的高质量钢材产品。