通过引入可靠度的置信区间和置信度的概念，可以把结构分析中的随机参数转化为置信区间下的区间数。
Using concepts of the confidence interval and degree of confidence, random parameters in an engineering structure can be transferred into the interval Numbers.
还给出了带有可靠度和置信度的疲劳损伤阀值。
The fatigue damage threshold with a reliability and a confidence is suggested in this paper.
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