chemical oxygen demand

常見例句

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(jī)化郃物的主要指標(biāo)）、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