environmentally friendly chemical process
environmentally friendly chemical process
环保化工工艺
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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An environmentally-friendly chemical polishing and passivation process was established for copper and its alloys, using a rare earth salt in the passivation solution.
为了提高铜及其合金的表面抗变色能力，研制了一种环保的化学抛光工艺和含稀土盐的新型钝化工艺。
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