第二章，城市规模效益分析与比较。
与此同时，城市规模扩大，人口增加。
At the same time, the scale of cities was enlarged, population increased.
如何把城市规模控制在合理、适当的范围?。
Then, how should we control the urban scale within a reasonable and proper range?
城市规模是我国城市化过程中至关重要的问题。
The city scale is an important problem in the process which citifies our country.
目前大量人口涌入城市，使得城市规模越来越大。
At present, large crowds of people move into cities, making them bigger and bigger.
城市规模等级结构的划分是一个多指标的分类问题。
The division of city hierarchical structure is a multi-index classification problem.
在很多国家，城市规模都遵循一个显著的正规模式，即所谓的位序-规模法则。
In many countries, city sizes follow a remarkably regular pattern, known as the rank-size rule.
在很多国家，城市规模都遵循一个显著的正规模式，即所谓的位序-规模法则。
In many countries, city sizes follow a remarkably regular pattern, known as the rank-size rule.
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