pre-coagulation treatment
pre-coagulation treatment
pre-coagulation治疗
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The result has shown that the pre-coagulation treatment has the effect to the COD of the wastewater, ore than 60%.
试验结果表明，絮凝预处理对啤酒废水的COD的处理效果可以达到60%以上。
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