短語詞組短語ribbed floor slab 肋形樓板ribbed d slab floor 密肋樓板precast ribbed roof slab 大型屋麪板;預制大型屋麪板ribbed thin slab 帶肋薄板ribbed flat slab 密肋樓蓋multi -ribbed wall slab structure 密肋壁板結搆frame -supported multi-ribbed composite slab structure 框支密肋壁板結搆 返回 ribbed slab