chemical oxygen demand
Ecology
noun
The amount of oxygen required to oxidize fully the organic compounds contained in a volume of water, used as measure of water quality; abbreviated COD.
Origin
1930s; earliest use found in The Lancet.
| 单词 | chemical oxygen demand |
| 释义 | chemical oxygen demandEcology noun The amount of oxygen required to oxidize fully the organic compounds contained in a volume of water, used as measure of water quality; abbreviated COD. Origin |
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