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Research and development
containing
氧
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all forms
Chinese
English
化学的
氧
气需求
COD
chemical oxygen demand
氧
气需求
oxygen demand
氧
气需求, 氮的-NOD
nitrogenous oxygen demand
生物化学的
氧
气需求
BOD
biochemical oxygen demand
生物需
氧
量
biological oxygen demand
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