On the basis of practice, this paper designs a scientific and complete evaluation system, and sets up a model for the evaluation by means of fuzzy cluster analysis.
本文在实践经验的基础上，设计了科学全面的评价指标体系，并采用模糊聚类分析方法建立了供应商评价模型。
Dike construction risk evaluation system and risk evaluation definition model are settled down with the analysis of dike construction hierarchy as well as fuzzy character.
分析了堤防系统的层次性及模糊性，在此基础上建立了堤防工程风险评价系统指标体系和评价结构模型。
Setting up an energy balance analysis model of heavy oil gathering system and gives evaluation index and calculation formula.
建立了稠油集输系统的能量平衡分析模型，给出了评价指标及其计算公式。
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