Nutrient export coefficient of land use is an important parameter for constructing model of non-point source pollution.
各种土地利用类型营养盐输出系数是建立非点源污染模型的重要参数。
The unsaturated hydraulic conductivity is a key parameter of porous media applied to groundwater pollution prediction and assessment.
多孔介质非饱和导水率是地下水污染预测与评价的重要参数。
Biochemical oxygen demand (BOD5) is one of the important indexes of organic pollution. It is also an important parameter of environmental monitoring.
生化需氧量(BOD5)是一个重要有机污染指标，是环境监测的重要参数之一。
Biochemical oxygen demand (BOD5) is one of the important indexes of organic pollution. It is also an important parameter of environmental monitoring.
生化需氧量(BOD5)是一个重要有机污染指标，是环境监测的重要参数之一。
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