The design method and scheme of reinforcement, underground construction technology and monitoring, The evaluation of the strengthening effect and techno-economic benefits.
加固支护设计方法和方案，井下施工和矿压监测，支护加固效果和技术经济效益分析。
The safety pre evaluation is a complex technology economic system engineering and it is complex due to influential factors, on relation variables and constraining conditions.
安全预评价是一个复杂的技术经济系统工程，其影响因素、关联变量和约束条件复杂。
This paper introduces the economic benefit indexes of power technology reform project, and by using fuzzy comprehensive evaluation, establishes the evaluation system with multiple indexes.
介绍了电力技术改造项目的经济效益指标，并利用模糊综合评判方法，构建了多指标评价体系。
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