轻钢龙骨体系就是由这样的平面桁架梁组成的结构体系。

Integra Web Steel is composed of the plane truss beam.

youdao

轻钢龙骨体系就是由这样的平面桁架梁组成的结构体系。

Integra Web Steel is composed of the plane truss beam.

youdao