constructor's railway

例句：

1. 1.This is the first time we have used a construction railway to transport goods.
   这是我们第一次使用施工铁路运输货物。
2. 2. The engineer's railway was designed to be more efficient than traditional methods.
   工程师的铁路设计得比传统方法更高效。
3. 3. The construction railway has been a major source of environmental concern for years.
   施工铁路多年来一直是环境关注的主要来源。