对于打算升级污水处理系统的小型社区来说，Poo - Gloos这种新型的爱斯基摩式圆顶型污水净化设备为其提供了一种更为低廉的选择。
New igloo-shaped devices, affectionately known as Poo-Gloos, are offering an affordable way for small communities to upgrade their wastewater treatment systems.
三叶型罗茨鼓风机具有低噪声的特点，解决了污水处理设备中应用罗茨鼓风机进行曝气带来的二次嗓声污染的难题。
This type blower has been successfully developed to solve the secondary noise pollution, the difficult problem caused by Roots blowers which are used for the aeration of wastewater.
三叶型罗茨鼓风机具有低噪声的特点，解决了污水处理设备中应用罗茨鼓风机进行曝气带来的二次嗓声污染的难题。
This type blower has been successfully developed to solve the secondary noise pollution, the difficult problem caused by Roots blowers which are used for the aeration of wastewater.
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