活性污泥法是以活性污泥为主体的的废水生物处理的主要方法的翻译：Activated sludge is activated sludge-wastewater bio-treatment of the subject of the main method 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Activated sludge as the main method is based on activated sludge biological treatment of wastewater main method

Activated sludge is activated sludge-wastewater bio-treatment of the subject of the main method

The active sludge law is take the active sludge as the main body waste water biological treatment main method

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Activated sludge is activated sludge-wastewater bio-treatment of the subject of the main method