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。
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.
本文首先详细分析了电子政务系统的组成要素和功能，并以此为基础，构建了电子政务系统的结构模型，以明确电子政务系统评价的范围。
In this article, the components and functions of E-government system are firstly analyzed in detail and the E-government system structure model is built in order to define the evaluation scope.
给出了港口功能评价指标体系的结构模型。
The article has also produced the harbor function appraisal target system structural model.
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