大跨房屋钢结构
Large-span Steel Structure
房屋屋顶构网
net-making of Building’s roof
开启式钢结构屋面
retractable steel roof structure
轻型房屋钢结构
steel structure of light-weight buildings
折线形屋顶结构
mansard roof construction
车顶钢结构
steel structure of car roof
钢结构构件拓扑优化
steel structure topology optimization