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The passivess of Boiler by hydrogen peroxide after acid cleaning was studied.
研究了锅炉酸洗后过氧化氢钝化的工艺条件.
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Be responsible for the inspection of piping tightness test , pressure test, strength test, zincification, acid cleaning.
负责管系的密性 、 试压 、 强度试验 、 镀锌 、 酸洗的检验、报验.
酸洗???
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