| 单词 | biochemical oxygen demand |
| 释义 | biochemical oxygen demand in British Englishnoun a measure of the organic pollution of water: the amount of oxygen, in mg per litre of water, absorbed by a sample kept at 20°C for five days Abbreviation: BODbiochemical oxygen demand in American English1. the amount of dissolved oxygen needed to decompose the organic matter in waste water: a high BOD indicates heavy pollution with little oxygen remaining for fish 2. the organic matter in waste water |
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