The methods and approaches of soil and water loss evaluation models are analyzed. Meanwhile, taking Shenzhen city as an example, the comprehensive evaluation model is built.
主要分析了城市水土流失评估模型的研制方法和途径，并以深圳市为例，探讨并建立了深圳市水土流失综合评判模型。
Relevant models are also built in this paper. The maintenance optimal system of power plant equipment based on fuzzy comprehensive evaluation is put forward from reliability, economy and security.
对所制定的维修决策分别从可靠性、经济性、安全性三个方面进行优化，提出了基于模糊综合评判的电站设备维修优化体系。
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