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文章系统的阐述了物流系统建模的几个理论问题，提出了系统建模的原则、模型体系的概念和具有递阶形式的两阶段建模方法，并分析了模型中的构成要素等问题。
The article systematically elaborated several theoretical problems in the modeling of logistics system, proposed the principles of system modeling, the concept of model system, and the two-stage modeling method with recursive form, and analyzed the constituent elements of the model.