在建立的自己的模型之前，本文首先回顾了有关城市形成和城市位序规模分布的研究历程和研究成果。

Before introduce the new model, this paper reviews the research history and research findings of city formation and rank-size distribution of cities firstly.

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从城市规模分布的位序-规模法则出发，推导出城市等级体系的二倍数法则。

This paper demonstrates the equivalent relation between the 2n rule of hierarchy of cities and the rank-size rule of city size distribution.

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从城市规模分布的位序-规模法则出发，推导出城市等级体系的二倍数法则。

This paper demonstrates the equivalent relation between the 2n rule of hierarchy of cities and the rank-size rule of city size distribution.

youdao