随着生活污水和工业废水处理率的提高，污泥的产量越来越大。
As the rate of municipal and industrial wastewater treatment goes up, the amount of sludge produced in the treatment process increases a lot.
我国的城市污水和工业废水处理率逐渐提高，在此过程会产生的大量的污泥。
As the rate of municipal wastewater treatment going up in our country, the amount of sludge produced in the treatment process increase a lot.
我国的城市污水和工业废水处理率逐渐提高，在此过程会产生的大量的污泥。
As the rate of municipal wastewater treatment going up in our country, the amount of sludge produced in the treatment process increase a lot.
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