Now, supernutrition is the first problem in Dianchi, and the environment of the lake deteriorate gradually for more total phosphorus and total nitrogen was input.
是整个流域污染物唯一的汇,这也是其难以治理的原因。
Now, supernutrition is the first problem in Dianchi, and the environment of the lake deteriorate gradually for more total phosphorus and total nitrogen was input.
是整个流域污染物唯一的汇,这也是其难以治理的原因。
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