短語詞組短語large span steel grid -frame structure 大跨度鋼網(wǎng)架結(jié)構(gòu)steel -pipe frame structure 鋼管框架結(jié)構(gòu)light steel -frame structure production line 輕鋼龍骨生產(chǎn)線semi -rigid steel-frame structure 半剛接鋼框架lighter -steel-frame structure 輕鋼結(jié)構(gòu)Steel frame -bent structure 鋼排架結(jié)構(gòu)steel frame -brace structure 鋼框架支撐體系 返回 steel-frame structure