化学还原法的关键在于还原剂的选择。
The critical point of chemical reduction was the option of reducing agent.
采用化学还原法处理含铬离子污水，焦亚硫酸钠作还原剂。
The method of chemical deoxidization was used to treat electroplating wastewater which contains chromium ions, and sodium pyrosulfite was used as reducing agency.
研究了以化学还原法与均匀沉淀法相结合的方法制备纳米铜粉。
The preparation of nanometer copper powder by chemical reduction combined with homogeneous precipitation method is studied.
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