运用层次分析法，构建了城市绿地系统效益评价模型，对模型各组成部分进行了详细阐释。
The city greenbelt evaluating model was built by using the AHP theory with detailed analysis of the components.
在此基础上，提出了防治公路滑坡的工程措施及非工程措施，并建立了防治工程经济效益评价模型。
Based on that, from the engineering control measures and non-engineering measures to study the protection engineering, and thus establish the economic evaluation of prevention methods and models.
这个模型能够全面地综合评价风险投资方案的经济效益和风险大小，有助于正确决策。
This model enables us to analyse thoroughly and comprehensively the economic benefits and risks of the risk investment plan, and contribute to make correct decisions.
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