本文推演了城市系统中在人口零增长假设条件下的人口迁移理论模型；
This paper deduces a theoretical population model in a urban system under a hypothetical condition of zero population growth (ZPG), and analyses the population dynamics for the model.
介绍了人口社会学中的人口迁移理论和经济学中的社会成本理论的基本内容，以及它们在本文的运用。
Introduce the basic content and application of Geographic migration theory in Demography and Social cost theory in Economics.
分析了推力—拉力理论在分析人口迁移过程中的作用。
At last, the push and pull theory is introduced in this part.
城镇人口迁移是从城镇的角度去研究人口迁移，人口迁移的基础理论也是它的基础理论。
The basic theory of urban population migration is the same as that of population migration.
城镇人口迁移是从城镇的角度去研究人口迁移，人口迁移的基础理论也是它的基础理论。
The basic theory of urban population migration is the same as that of population migration.
应用推荐