Finally, we apply unclarity relevancy theory in modeling plan&design risks based on these uncertainty factors for risk classification. 最后，我们在这些不确定性因素的基础上运用灰色关联分析法建立策划设计管理风险模型并加以风险因素等级评估。
The mine series system has not only randomness but also fuzziness.In system analysis and design process, these two non-determinative factors should be considered at the same time. 矿井系统不仅具有随机性，而且同时也具有模糊性，在系统分析与设计过程中应同时考虑这两种不确定性因素的影响。
