通过分析它们的特点及适用范围，补充了常用的人口预测方法的不足。

Through analyzing their characteristic and scope of application, the article makes up the deficiency of the commonly used population forecast method.

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用于人口预测的方法很多，系统动力学仿真便是其中的一种，该方法在解决复杂系统问题时具有多方面的优势。

There are many ways and means to forecast population of which system Dynamics is the one, system Dynamics has many advantages of solving the problem on complex system.

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运用文献研究方法对国内外老龄化研究现状进行综述，本文借鉴了已有的研究成果，尤其在人口预测方面。

Using research methods on the domestic and foreign literatures, it summarizes the situation of aging. This paper draws on existing research results, especially in population projections.

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