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为防止水体富营养化,需要对三峡库区小城镇居民生活污水进行处理。
In order to prevent water eutrophication, sewage treatment in small towns is necessary.
youdao
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为防止水体富营养化,需要对三峡库区小城镇居民生活污水进行处理。
In order to prevent water eutrophication, sewage treatment in small towns is necessary.
youdao