pegram truss

例句：

1. 1.The engineer designed a new pegramtruss for the bridge.
   工程师为桥梁设计了一种新的桁架。
2. 2. The construction ofthe bridge was completed with the help ofthe pegram truss.
   桥梁的建设得益于桁架的帮助。
3. 3. The pegram trussis strong and durable, makingit ideal for supporting heavy loads.
   桁架结构坚固耐用，非常适合支撑重载。