a railway tunnel的用法和样例：
- Rescue workers found a crushed bus Friday underneath the rubble at a railway tunnel construction site near the Three Gorges Dam in Hubei province.
- Abstract: Rock stress state in situ is determined by the hydrofracturing method for rock stress measurement in a railway tunnel in northwestern Yunnan.
摘 要： 通过地应力测量，确定出工程区隧道围岩现今地壳应力状态，即原地应力的大小和方向。
- It takes a lot of labor to build a railway.
- The gifts to him would have filled a railway car.
- Many sleepers were fixed on a railway.
- It takes a lot of labour to build a railway.