尖轨连接杆

例句：

1. 1. The engineer used a special tool to remove the sharp rail connector.
   工程师使用特殊工具来移除尖锐的轨道连接杆。
2. 2. The train's wheels were securely fastened to the rails with these heavy rail connectors.
   火车的轮子被这些沉重的轨道连接杆牢固地固定在轨道上。
3. 3. The new design of the rail connectors is expected to improve efficiency and reduce maintenance costs.
   新设计的轨道连接杆预计将提高效率并减少维护成本。