Overflow channels that have become shallow lakes, periodically recharged with water and fish by the floods, pattern the landscape.
已经变成了浅湖的泛滥河道偶尔还会因洪水而再度溢满，风景如画的美丽湖泊于是成为了鱼类的天下。
Three small overflow dams with different grade in an urban river were constructed and the water quality in different fixed sample points were periodically monitored.
对人工搭建的三个不同坡度的小型溢流堰堰体上下的水质进行定期监测，考察溢流堰坡度对水体溶解氧和有机污染物浓度的影响。
Three small overflow dams with different grade in an urban river were constructed and the water quality in different fixed sample points were periodically monitored.
对人工搭建的三个不同坡度的小型溢流堰堰体上下的水质进行定期监测，考察溢流堰坡度对水体溶解氧和有机污染物浓度的影响。
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