It is necessary to study the characteristics of microorganisms in the sludge in order to efficiently evaluate the biological nutrient removal (BNR) process.
为了有效地评价除磷脱氮工艺，有必要研究污泥中微生物的特性。
It is necessary to study the characteristics of microorganisms in the sludge in order to efficiently evaluate the biological nutrient removal (BNR) process.
为了有效地评价除磷脱氮工艺，有必要研究污泥中微生物的特性。
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