①、优势：

(1), advantages:

a通过球面结构基本不增加成本时，对池体刚度有一定提高；

When the structure of a spherical structure is not increased, the stiffness of the pool must be improved.

b在凹槽处安装加强肋，对池体刚度也有一定提高；

B is installed in the groove, and the stiffness of the pool is improved.  

c制造成本低。

C manufacturing costs are low.

②、缺陷：

(2), defect:

a球面结构太少，一个池体仅2-4个球面，刚度增加有限；

A spherical structure is too small, a pool is only 2-4 spheres, and stiffness is limited.

b加强肋用金属方管支撑，使用寿命不长；

B strengthens the ribs with the metal tube supporting, the service life is not long;

c 手工糊制，质量无法保证。

C is made by hand. The quality is not guaranteed.