railway gauge

例句：

1. 1.The railway line is too narrow for thenew trains.
   这条铁路线太窄，不适合新列车。
2. 2. The engineer needs tocheck the railway gauge before starting work.
   工程师在开始工作前需要检查铁路轨距。
3. 3. The railway gauge is crucial for ensuringsafe travel on the railway.
   铁路轨距对于确保铁路上安全旅行至关重要。