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单词
chemical oxygen demand
释义
chemical oxygen demand
Encyclopedia
理学
环境分析
释
chemical oxygen demand；COD
化学需氧量
水样在一定条件下，以氧化1升水样中还原性物质所消耗的氧化剂的量为指标，折算成每升水样全部被氧化后，需要的氧的毫克数。以毫克/升表示。化学需氧量反映了水中受还原性物质污染的程度，也是有机物相对含量的综合指标之一。
Chemistry
＞分析化学＞化学分析＞释义
chemical oxygen demand (COD)
化学需氧量
Biology
chemical oxygen demand
COD
化学耗氧量；化学需氧量
随便看
temperature-programmed gas chromatography
temperature programmed reduction
temperature-programmed reduction
temperature programmed reduction (TPO)
temperature-programmed reduction (TPO)
temperature programmed reduction (TPR)
temperature-programmed reduction (TPR)
temperature programming
temperature quantity value dissemination system
temperature rate
temperature receptor
temperature regulatory systems
temperature-resistant
temperature rising elution fractionation
temperature scale
temperature scale, thermometric scale
temperature seiche
temperature sensation
temperature-sensing element
temperature-sensitive
temperature sensitive mutant
temperature-sensitive paint
temperature sensor
temperature sequence
temperature-spectrum relation
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