短語詞組短語rigid joint steel frame 剛性框架semi -rigid steel-frame structure 半剛接鋼框架half a rigid steel frame 半剛性鋼框架Portal steel rigid frame 組合門架steel rigid frame 剛性鋼構(gòu)架steel l rigid frame 剛性鋼構(gòu)架slant -legged steel rigid frame 斜腿剛構(gòu) 返回 rigid steel frame