短語詞組短語dam shell material construction 垻殼料施工Shell plating construction 外板搆造shell type construction 薄殼結搆solid shell construction 堅固結搆stressed shell construction 張殼搆造protective shell construction 套箱施工shingle shell construction 瓦片式爐殼結搆thin -shell construction 薄殼結搆shell l type construction 薄殼結搆 返回 shell construction