短語詞組短語wall -slab b structure 墻板結構concrete wall -slab 混凝土墻板shear wall slab 剪力墻板building wall slab 外墻板composite wall slab 復合墻板cs building wall slab cs 外墻板Light Wall Slab 輕質墻板retaining wall slab 擋墻板 返回 wall slab