“chemical oxygen demand”的概念、定义、翻译、参考文献-科学参考

　

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 demandCOD化学耗氧量；化学需氧量
随便看	upper bounded variable upper bound of a family upper bound of a function upper bound of an operator upper bound of a set upper Burkill integral Upper Capital City of the Jin Dynasty Upper Capital-Longquanfu of Bohai State Upper Capital of Jin Dynasty Upper cave human remains upper center series upper central chain upper central exponent upper central series upper chromosphere upper circle upper class upper class limit upper closure upper closure of a concave-convex function upper closure of a concaveconvex function upper closure of a convex-concave function upper closure of a convexconcave function upper cold and lower heat upper cone

　

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