rail joint bar

例句：

1. 1. The train was delayed dueto a faulty rail joint.
   由于一个接头故障，火车晚点了。
2. 2. The engineerinspected the rail joints before startingthe journey.
   工程师在开始旅程前检查了铁轨接头。
3. 3. The railway company isresponsible for maintaining the safety of rail joints.
   铁路公司负责维护铁轨接头的安全。