reinforced concrete girder slab

例句：

1. 1.The reinforced concrete girder is the main structural element of the bridge.
   钢筋混凝土梁是桥梁的主要结构元件。
2. 2.The reinforced concrete girder was installed in the middle of the bridge.
   钢筋混凝土梁被安装在桥梁的中间。
3. 3. The reinforced concrete girder provides a strong and durable support for the bridge.
   钢筋混凝土梁为桥梁提供了坚固耐用的支持。