For example, he says, we will always need sewage and water treatment.
他说，比如我们总是需要污水和饮用水处理。
Apply for feed water, sewage treatment, power plant cooling water circulation and general industry application.
应用于给水、污水处理、电厂冷却水循环及一般工业应用领域。
Sewage water treatment system has advanced and separate rain water and sewage systems.
污水处理系统，采用先进的雨污分流管网。
Water treatment equipment, including water purification equipment and sewage equipment.
水处理设备，包括净水设备和污水设备。
Water treatment equipment, including water purification equipment and sewage equipment.
水处理设备，包括净水设备和污水设备。
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