track indication lamp

例句：

1. 1.The track indication lamp on the train is used to indicate the position of the train.
   火车上的轨道指示灯用来指示火车的位置。
2. 2.The track indication lamp helps us to see the tracks clearly in the dark.
   轨道指示灯在黑暗中帮助我们清楚地看到轨道。
3. 3.The track indication lamp is essential for maintaining safe and efficient railway operations.
   轨道指示灯对于维护安全和高效的铁路运营至关重要。