6ZHANG Xiao-zhuang1,LIU Yin-di2,ZHAO Peng3,ZHANG Ze-zhong2 1.Guodian Diqing Shangri-la Generating Limited Liability Company,Shangri-la 674402,China,2.North China University of Water Resources and Electric Power,Zhengzhou 450011,China,3.Three Gorges Project Administration of Yangtze River Three Gorges Corporation,Yichang 443133,China.Application of Ordinal Set Pair Analysis in Annual Rainfall Prediction of Liao River Basin[J].Meteorological and Environmental Research,2011,2(7):47-49.