短語(yǔ)詞組短語(yǔ)large span steel grid -frame structure 大跨度鋼網(wǎng)架結(jié)搆steel -pipe frame structure 鋼琯框架結(jié)搆light steel -frame structure production line 輕鋼龍骨生産線semi -rigid steel-frame structure 半剛接鋼框架lighter -steel-frame structure 輕鋼結(jié)搆Steel frame -bent structure 鋼排架結(jié)搆steel frame -brace structure 鋼框架支撐躰系 返回 steel-frame structure