An economic management model of the system and optimization technique are developed.
提出了系统的经济管理模型与相应的优化技术。
Functions of special economic zones (SEZs) include system function, economic function and role model function.
经济特区的职能包括制度职能、经济职能和精神职能。
Society economic system nonlinearity nature decides the way of building nonlinear model to forecast.
社会经济系统的非线性本质决定了必须建立非线性模型进行预测。
To achieve economic cycle model, we must set up an effective legal system to guarantee.
而要实现循环经济模式，必须建立起有效的法制保障。
To achieve economic cycle model, we must set up an effective legal system to guarantee.
而要实现循环经济模式，必须建立起有效的法制保障。
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