县市分等方法及中国县市等第特征的分异规律
李一飞, 王开泳, 王甫园

Classification method for counties and cities' gradation and differentiation rule in China
LI Yifei, WANG Kaiyong, WANG Fuyuan
图4 省域尺度分等的各等第县市综合评价值最高最低值散点图
Fig. 4 Lowest and highest scatters of counties and cities' comprehensive evaluation value at the provincial level