submerged paddle aerator

例句：

1. 1. The submerged paddle aerator was designed to improve the oxygenation of water in swimming pools.
   这种浸没式搅拌器被设计用来提高游泳池中水的氧气含量。
2. 2.The submerged paddle aerator is an effective way to prevent algae growth in swimming pools.
   浸没式搅拌器是防止游泳池藻类生长的有效方法。
3. 3. The submerged paddle aerator was installed in the swimming pool to increase its efficiency and reduce maintenance costs.
   在游泳池中安装了浸没式搅拌器，以提高其效率并减少维护成本。