hour-out line

例句：

1. 1. The train's hour-out line is marked with a red cross.
   火车的出车线用红色十字标记。
2. 2. The engineer checked the hour-out line before starting the engine.
   工程师在启动引擎前检查了出车线。
3. 3.The construction crew was busy adjusting the hour-out line for the next shift.
   施工队忙于调整下一班次的出车线。