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["Name","Phase Ⅰ（EC-like model）",{"$nulls":9},"Phase Ⅱ（PES-like model）"]
[null,2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,null,"Name",2008,2017,2021]
["Tongjiangkou",6,6,6,5,5,4,5,6,5,6,6,5,4,4,null,"Tongjiangkou",6,6,4]
["Qingliao",6,6,5,4,4,4,4,4,4,4,6,4,3,2,null,"Qingliao",6,4,2]
["NO.1 Bridge of Fan River",3,3,4,4,4,4,3,3,3,3,3,3,2,2,null,"NO.1 Bridge of Fan River",3,3,2]
["Zhu'er Mountain",6,6,5,4,4,4,4,4,4,4,4,3,2,2,null,"Zhu'er Mountain",6,4,2]
["Lama Bridge",3,3,4,4,4,4,4,5,4,4,4,4,3,3,null,"Lama Bridge",3,4,3]
["Juliuhe Bridge",6,6,6,6,3,4,5,5,5,4,4,4,3,2,null,"Juliuhe Bridge",6,4,2]
["Liu River Bridge",5,4,5,4,4,4,4,4,4,4,4,3,3,2,null,"Liu River Bridge",5,4,2]
["Hongmiaozi",6,6,5,4,3,4,5,4,4,4,5,4,4,4,null,"Hongmiaozi",6,4,4]
["Panjin Xing'an",6,5,6,5,4,4,4,4,4,4,5,4,3,3,null,"Panjin Xing'an",6,4,3]
["Shengli Tang",6,6,6,5,4,4,4,4,4,4,5,4,2,2,null,"Shengli Tang",6,4,2]
["Zhaoquan River",6,5,5,5,4,4,4,4,4,4,4,4,2,2,null,"Zhaoquan River",6,4,2]
["PS: The numbers 1,2,3,4,5 represents the water-quality rank Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴ,  and the \"6\" represents the poor Ⅴ."]