On the basis of studying the mechanism of sewage scaling and its softening treatment, the technique for water quality soft process with sodium hydroxide precipitation method is determined.
在污水结垢机理和软化处理研究的基础上，确定了氢氧化钠沉淀法进行水质软化处理的工艺。
On the basis of studying the mechanism of sewage scaling and its softening treatment, the technique for water quality soft process with sodium hydroxide precipitation method is determined.
在污水结垢机理和软化处理研究的基础上，确定了氢氧化钠沉淀法进行水质软化处理的工艺。
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