需氧量 能完全反映水中还原性物质的污染程度。
The overall aerobic quantity cam completely reflect the pollution degree of reducing matter in water.
以石墨棒电极上的阳极电流作为土壤中还原性物质数量的指标。
The anodic current desity on the surface of graphite rod electrode is used as the index of the amount of reducing substances in soil .
不同有机物料所产生的有机还原性物质的强度和数量各不相同。
The reducing strength and amount of organic reducing substances produced from different green manures were different from each other.
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