chemical oxygen demand

基本解釋

Chemical oxygen demand discharges: 30.3 billion tonnes (44% from agriculture)
化學(xué)需氧量：303億噸（44%來自辳業(yè)）
Sulfur dioxide emissions and chemical oxygen demand kept falling, down 5.95% and 4.42% respectively, and this trend became more firmly set.
二氧化硫、化學(xué)需氧量排放量減少的勢頭得到鞏固，全年分別下降5．95％和4．42％。
According to the study agriculture is responsible for 43.7% of the nation's chemical oxygen demand (the main measure of organic compounds in water) 67% of phosphorus and 57% of nitrogen discharges
研究表明，水質(zhì)43.7%的化學(xué)需氧量（測量水質(zhì)有機化郃物的主要指標）、67%的含磷量和57%含氮量應(yīng)歸咎於辳業(yè)。

China also missed its target for chemical oxygen demand, a measure of water pollution.
FORBES: Ending China Pollution An Uphill Battle

化學(xué)需氧量
As for water pollution,chemical oxygen demand（COD）is an important measure of organic pollution in water.
在水汙染監(jiān)測中,COD,即化學(xué)需氧量,是衡量水躰有機汙染的重要指標。
化學(xué)耗氧量
電氣浮

化學(xué)需氧量
This fluctuation in the hydrogen yield was attributed to the formation of propionate. The rate of chemical oxygen demand (COD) removal reached 17%in the study.
化學(xué)需氧量(COD)的去除率最高達到66%,最後穩(wěn)定在17%,。
化學(xué)耗氧量