relayed rail

例句：

1. 1.The train was delayed due to a relayed rail issue.
   由于接力轨道问题，火车晚点了。
2. 2. The engineer carefully inspected the relayed rails before starting the engine.
   工程师在启动引擎前仔细检查了接力轨道。
3. 3. The construction crew had to replace the relayed rails due to corrosion.
   施工队不得不更换因腐蚀而损坏的接力轨道。