pole brace

例句：

1. 1. The pole brace is used to hold the roof up.
   杆支撑用来支撑屋顶。
2. 2. The engineer needed a pole brace to reinforce the bridge.
   工程师需要一根杆支撑来加固桥梁。
3. 3.The construction workers were using pole brace to support the heavy equipment.
   建筑工人正在使用杆支撑来支撑重型设备。