从初级处理的污水缓缓流过浅的人工流。
Effluent from the primary treatment slowly flows through a shallow artificial stream.
从初级处理的污水，接种污泥含有高浓度的代谢细菌和大力加气。
Effluent from the primary treatment is seeded with sludge that contains a high concentration of metabolizing bacteria and vigorously aerated.
从初级处理的污水，接种污泥含有高浓度的代谢细菌和大力加气。
Effluent from the primary treatment is seeded with sludge that contains a high concentration of metabolizing bacteria and vigorously aerated.
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