steel-concrete composite beam

例句：

1. 1. The steel-concrete composite beam is the main load-bearing member of the bridge.
   钢混凝土组合梁是桥梁的主要承重构件。
2. 2. The engineer carefully designed the steel-concrete composite beam to withstand high loads.
   工程师仔细设计了钢混凝土组合梁以承受高负载。
3. 3. The steel-concrete composite beam was installed in the construction site and tested for strength before being used.
   钢混凝土组合梁在施工现场安装并测试强度后使用。