Waters with low SUVA values contain primarily non - humic matter and are not amenable to enhanced coagulation.
水域低苏瓦值包含主要是非腐植酸有机质和不服从强化混凝.
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Having brownish acidic waters, a high concentration of humic matter, and a small plant population.
无滋养的带有棕色酸性物质的水域, 腐殖物高度集中并有小型植物群的.
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