railway fixed assets

例句：

1. 1. The railway companyhas invested heavily in the expansion of itsnetwork.
   铁路公司大力投资于网络扩张。
2. 2.The railway infrastructure is crucial for the smoothoperation of the transportation system.
   铁路基础设施对于交通系统的顺畅运行至关重要。
3. 3. Therailway fixed assets are essentialfor the long-term sustainabilityof the railway system.
   铁路固定资产对于铁路系统的长期可持续性至关重要。