hyperbolic paraboloid shell 双曲抛物面薄壳

elliptical paraboloid shell 椭圆抛物面型壳

elliptic paraboloid shell [建] 椭圆抛物面壳体

paraboloid-shell 抛物面型壳

liptic paraboloid shell 椭圆抛物面壳

hyperbolic c paraboloid shell 双曲抛物面薄壳

elliptic paraboloid latticed shell 椭圆抛物面网壳

hyperbolic paraboloid latticed shell 双曲抛物面网壳 ; 鞍形网壳