special heavy section switch rail

例句：

1. 1. The special heavy section switch rail is used in the construction of bridges and tunnels.
   特种重型段开关轨道用于桥梁和隧道的建设。
2. 2.The special heavy section switch rail is designed to withstand high loads and provide stable support for vehicles.
   特种重型段开关轨道设计用来承受高负荷并提供车辆稳定的支撑。
3. 3. The special heavy section switch rail is crucial for ensuring the safety of workers and preventing accidents.
   特种重型段开关轨道对于确保工人安全和预防事故至关重要。