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污水污

污水污

污水污

污水污

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The scheme for the treatment of polluted matters and sewage .

污水、污物的处理方案。

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Sewage treatment : sewage, waste oil, sludge .

污水处理：污水、污油、淤泥。

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Shipbuilding : bilge water, waste oil, all kinds of fresh fuel .

造船业：船底污水、污油、各种燃油淡水。

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Experimental Study on Performance and Design Method of a Submarine Sewage Vortex Pump

污水污物潜水旋流泵性能及设计方法试验研究

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Stainless steel sewage submersible pumps

不锈钢污水污物潜水电泵

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Some Problems of Sewage Submersible Pumps

污水污物潜水泵标准的参数探讨

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the waste material and water carried in sewage

污水，污物从下水道中排出。

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