importancen.重要；重要性importance degree of member成员重要度importance of French learning学习意义importance of bottom incident底事件重要度importance sampling procedure重点抽样法importance sampling technique重要性抽样技术importance of decision makers决策者权重importance factor of structure结构重要性系数importance sampling simulation重要抽样importance-possibility degree重要度-可能度importance-performance analysis重要性-满意度分析

1. At the same time, the importance exponents for the hazards of different indexes are analyzed by using simulation data.
   同时，利用模拟结果，分析了各指标危险性重要度指数。