Often the most challenging problem for treatment wetland projects is a full understanding of the chemical make-up of the water being treated in the wetland.
处理湿地项目的最棘手的问题是对湿地里水的化学物质有全面的了解。
The make up water of Anyang Chemical Fertilizer Plant comes mostly from the reservoir, so its content of microorganisms is high, and bacteria and algae multiply.
安阳化肥厂补充水大部分来源于水库，微生物含量多，菌藻滋生严重。
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