Objective to clarify the impact of water level changes after the Three Gorges Dam construction on schistosome infection of livestock and snail in marshland areas, Anhui Province.
目的阐明三峡建坝后水位的变化，对长江安徽段江洲滩家畜及钉螺血吸虫感染的影响。
Water quality continues to decline in some areas around China's Three Gorges Dam, state media reported on Thursday, citing environment officials.
据中国官方媒体周四报道，环境官员说，三峡大坝周边一些水域的水质在持续下降。
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