矿井自然灾害的安全预评价涉及不确定因素众多。
The natural disaster in coal mine involves many unascertained factors.
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。
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.
该方法对于非线性评价问题，其预评价结果精度高，具有较强的可判性，为安全预评价提供了一种新方法。
The result indicates that it is effective with high accuracy and differentiation for the non linear evaluation problems. It provides a new method for the safety evaluation.
本文根据未确知数学理论，建立了预评价指标体系、置信度识别准则及评分准则，构造了矿井安全预评价未确知测度模型，并对矿井的各个安全指标进行了定量分析。
The index system of preliminary evaluation for coal mine is built on the basis of unascertained math theory, and the rules of incredible recognition and score are given at the same time in this paper.
目的探索物质安全数据表(MSDS)在建设项目职业病危害预评价中的应用。
ObjectiveTo explore the application of the material safety data sheet (MSDS) in pre-evaluation of occupational hazards in constructing engineering projects.
建设项目劳动安全卫生预评价制度是一件很有意义的事情，它对今后建设项目的劳动安全卫生设计工作起到积极促进作用。
The pre-assessment of labour safety and hygiene of projects is a work of importance, which can help promote the design of labour safety and hygiene of projects.
建设项目劳动安全卫生预评价制度是一件很有意义的事情，它对今后建设项目的劳动安全卫生设计工作起到积极促进作用。
The pre-assessment of labour safety and hygiene of projects is a work of importance, which can help promote the design of labour safety and hygiene of projects.
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