On that basis, the impact degrees of the history, present state and development trend of the mine environmental geological problems are evaluated using the fuzzy evaluation method.

在此基础上，用模糊数学综合评判法评定矿山环境地质问题的历史、现状及其发展趋势的影响程度。

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The research in this paper can provide the method instruction for the application of the environmental impact evaluation methods and the determination the reference environmental model.

本文的研究可以为污染物环境影响评估方法的应用以及火用分析方法中基准环境模型的确定提供指导与参考。

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It is one of the difficulties in environmental evaluation to carry out environmental economic cost-benefit analysis and monetize environmental impact.

开展环境经济损益分析，将环境影响货币化是环评工作难点之一。

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