文章分析了影响大型基础设施决策的因素，通过对灰局势决策理论的研究建立了大型基础设施的决策模型。
This paper analyses the complication of influence large infrastructure projects decision-making, through study on Gray Theory establishes the model of large infrastructure projects decision-making.
通过对供应链的系统分析，归纳总结了供应链的基本结构模型，并分析了影响其可靠性的主要因素。
By analyzing supply chains systemically, this paper summarizes the basic structure models of it, and analyzes the main factors that affect the reliability of the supply chain.
同时利用仿真模型分析了间隙、死区等非线性因素对系统精确度的影响，提出了提高传动系统性能的措施。
Based on the simulation model, the effect of backlash and dead zone nonlinear factors on the system performances was analyzed, and the measures to improve the system performances were given.
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