concealed structural column 暗构造柱

steel structural column 钢结构柱

Structural column spacing 构造柱间距

structural column removal 结构柱拔除

reinforced concrete structural column 钢筋混凝土构造柱

structural column as intermediate bracing 结构柱作中间支承柱

structural concrete column 混凝土构造柱

structural packing column 规整填料塔

structural collapsing column 构造陷落柱

slab-column structural system 板柱结构体系