...取自于NUREG -1493 App A之发现:「如果组件在两个运转周期内未故障,其进一步的故障可由组件之随机故障率(random failure rate)来计算,以及,「任何测试策划思考应要求故障组件在允许延长测试周期之前,通过连续二次成功测试。
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This structure can effectively reduce the random failure rate; In the case of failure occurence, it can fully protect the process of failure occurence and repair the controller without stoppage.
该结构能够有效地减少控制系统发生偶然故障的概率,并能够在故障发生的情况下,对生产过程提供充分保护和不停机维修控制器。
The motor on the spot is in operation in the random failure period and therefore its failure rate is approximately a constant.
现场使用的电机基本运行在偶然失效阶段,因而其失效率近似为一常数。
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