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.
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.
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