prestressed rock bolt

例句：

1. 1.The engineer used a prestressed rockbolt to reinforce the foundation of the building.
   工程师使用预应力岩石锚杆加固了建筑物的基础。
2. 2. The construction crew was using prestressed rock bolts to support theweight of the heavy equipment.
   施工队正在使用预应力岩石锚杆支撑重型设备的重压。
3. 3. The prestressed rock bolts were installed in the tunnel to preventcollapse during excavation.
   在隧道中安装预应力岩石锚杆以防止挖掘过程中的坍塌。