hyperbolic paraboloid shell 双曲抛物面薄壳
shell of hyperbolic paraboloids 双曲抛物面薄壳
hyperbolic c shell 双曲线薄壳
hyperbolic paraboloid latticed shell 双曲抛物面网壳
double hyperbolic reticulated shell 双层双曲线形网壳
hyperbolic thin-shell cooling tower 双曲薄壳冷却塔
hyperbolic c paraboloid shell 双曲抛物面薄壳
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