短語詞組短語double -arch-steel-tubular structure 雙拱型鋼管結(jié)構(gòu)體系concrete filled steel tubular structure 鋼管混凝土結(jié)構(gòu)concrete -filled steel tubular structure 鋼管混凝土結(jié)構(gòu)tubular steel structure 筒形鋼結(jié)構(gòu)物 返回 steel tubular structure