We discuss water quality of water body with biologic index in biology monitoring of water quality, and make objective evaluation to organic pollution of water body.
本文通过水质生物监测中的生物学指标的讨论，较准确的反映被监测水体的水质状况，进而对水体有机污染程度作出客观地评价。
Biochemical oxygen demand, BOD is necessary for water quality evaluation. It is an important index in measuring organic materials pollution.
生物化学需氧量bod是水质评价的必测项目，是衡量有机物对水质污染的重要质量指标。
Chemical oxygen demand is an integrative index for evaluating the degrees of organic pollution in water, and is also one of the important parameters in water monitoring.
化学需氧量是评价水体有机污染程度的综合指标，也是水质监测的一个重要参数。
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