Finally, we apply unclarity relevancy theory in modeling plan&design risks based on these uncertainty factors for risk classification. 最後，我們在這些不確定性因素的基礎上運用灰色關聯分析法建立策劃設計管理風險模型並加以風險因素等級評估。
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. 礦井系統不僅具有隨機性，而且同時也具有模糊性，在系統分析與設計過程中應同時考慮這兩種不確定性因素的影響。
