composite girder

例句：

1. 1. The new bridge is made of composite girder, which is stronger and lighter than traditional steel beams.
   这座新桥使用了复合材料梁，比传统的钢梁更坚固、更轻便。
2. 2.The engineer designed the bridge with composite girder to reduce its weight and increase its durability.
   工程师设计了使用复合材料梁的桥梁，以减轻其重量并增加其耐用性。
3. 3. The construction team used composite girder to construct the bridge quickly and efficiently.
   施工团队使用复合材料梁快速高效地建造了桥梁。