利用系统动力学和非线性经济计量方法，以各样本国数据资料进行模拟研究，建立理论模型。
Introducing systematic dynamics and nonlinear economic approaches, this paper establishes the theoretical model based on the simulation research on a vast amount of data.
本文简扼地介绍了非线性动力学、计算机科学、生物学、社会经济和精神世界中的复杂现象。
This paper briefs complicated phenomena in nonlinear dynamics, computer science, biology, social economy and mental world.
新兴的理论产生，为经济学的研究提供了新的研究工具，如分形、混沌、非线性动力学等。
The emerging of new theories brings new tools for economics study, such as fractal, chaos and nonlinear dynamics, etc.
研究目的：建立农地非农化与人类经济活动、人口增长的非线性动力学模型。
The purpose of the paper is to establish a nonlinear model of dynamic evolution of the relation between agricultural land conversion and human activities.
研究目的：建立农地非农化与人类经济活动、人口增长的非线性动力学模型。
The purpose of the paper is to establish a nonlinear model of dynamic evolution of the relation between agricultural land conversion and human activities.
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