On the base of above study, and with the structural system feature, we put forward economic of structural system analyzing method and model, which is base on value engineering theory.
在以上研究的基础上，并结合结构体系的特点，提出了基于价值工程理论的结构体系经济性分析的方法和模型。
When analyzing logistics system, some difficulty systems must take mathematic analytical method as mid-means to solve these problems in the way of model trial.
在进行物流系统分析时，一些比较复杂的系统，就必须用数学分析方法作为中介，以用模型试验的方法来求解。
Based on analyzing the characteristics of fuel supply system of launch site, a method of reliability analysis and evaluation of fuel supply system is proposed.
针对航天发射场加注系统特点，提出了可靠性分析和可靠性评定方法，解决了航天发射场可靠性分析和评定的建模问题。
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