track-laying machine with single cantilever

例句：

1. 1.The track-laying machine is used to lay the tracks for trains.
   轨道铺设机用于为火车铺设轨道。
2. 2. The track-laying machine was developed to improve railway transportation efficiency.
   轨道铺设机的开发旨在提高铁路运输效率。
3. 3. The track-laying machine has become an essential tool in the construction industry.
   轨道铺设机已成为建筑行业中不可或缺的工具。