1. vertical tie post in a roof truss. 
   支持屋顶的三角形桁架中平行的直柱。
2. connecting the crossbeam to the apex of a triangular truss. 
   连接大梁和三角孔桁梁顶点的支柱。
3. He was bearing a truss of trifles at his back. 
   他在背上背了一捆没有价值的杂物。
4. The robber truss him up and locke him in the bathroom. 
   强盗们把他捆起来锁进洗澡间。
5. American architect particularly known for the design and construction of truss bridges. 
   汤，伊斯尔1784－1844美国建筑学家，特别因其桁架桥的设计和建造而闻名

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• 1. 五弦桁架
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