cross rail head

例句：

1. 1. The train'scrossing rail head is just a few metersaway from the station.
   火车的交叉轨道头部就在车站几米远的地方。
2. 2. The engineercarefully checked the cross rail head before startingthe engine.
   工程师在启动引擎前仔细检查了交叉轨道头部。
3. 3. Theconstruction crew was working onthe cross rail head when itsuddenly gave way.
   施工队正在交叉轨道头部工作时，它突然塌陷了。