中国市县空间隶属关系的历史启示与改革优化
赵逸才

Historical reference and optimization reform of the spatial subordination relationship of city and county in China
ZHAO Yicai
图3 中国古代城乡的圈层结构
注:虚线表示城、乡之间缺少明确的行政管辖界线
Fig. 3 The circle structure of ancient cities and villages in China