6-purlin beam 六架梁
7-purlin beam 七架梁
5-purlin beam 五架梁
3-purlin beam 三架梁
9-purlin beam 八掾袱
five purlin beam 五架梁
4-purlin beam 四架梁
upper purlin tie beam 上金枋
lower purlin tie beam 下金枋
·2,447,543篇论文数据，部分数据来源于NoteExpress
Pipe truss by purlin , even between a beam and the whole structure by supporting system.
管桁架之间通过檩条、连系梁和支撑系统把整个结构连成整体。
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