rail shearing device

例句：

1. 1. The railway shearing device is used to cut the rails for transportation.
   铁路剪切装置用于切割铁轨以便运输。
2. 2. The engineers designed a new rail shearing device to improve efficiency.
   工程师们设计了一种新型的铁路剪切装置以提高效率。
3. 3. The rail shearing device was tested on a large scale in the construction site.
   在工地上对新型铁路剪切装置进行了大规模测试。