bolt race-way

例句：

1. 1.The bolt race-way is used to connect the rails together for easy transportation of goods.
   螺栓轨道用于连接轨道，以便轻松运输货物。
2. 2. The bolt race-way was designed to prevent the train from derailing in case of an emergency.
   螺栓轨道的设计是为了在紧急情况下防止火车脱轨。
3. 3. The construction crew had to replace the bolt race-way due to corrosion caused by the salt water.
   施工队不得不更换因盐水腐蚀而损坏的螺栓轨道。