truss girder

例句：

1. 1. The engineer designed thebridge to be strong enough to support theweight of heavy trucks.
   工程师设计这座桥足够坚固，能够承受重型卡车的重量。
2. 2. Theconstruction crew used steel trusses toreinforce the structure during the building process.
   施工队在建造过程中使用了钢桁架来加固结构。
3. 3. The new bridge is a marvelof modern engineering, featuring a trussed girder that spans acrossthe river.
   这座新桥是现代工程的杰作，它横跨河流，采用了桁架式梁。