钢桁架两榀一组，采用对称钢桁架梁组合结构。

Two steel trusses are in a group, and symmetrical steel truss beam combination structure is adopted.

youdao

钢桁架两榀一组，采用对称钢桁架梁组合结构。

Two steel trusses are in a group, and symmetrical steel truss beam combination structure is adopted.

youdao