本文讨论了材料退化失效的基本概念，给出了微观结构随机演化的动力学方程，统一导出了失效几率，可靠性、失效几率密度、失效率和平均寿命。
Some key concepts in degradated failure of materials is discussed. The stochastic evolution equation of defect clusters is given and the failure probability reliability and failure rate are derived.
通过分析金属化膜脉冲电容器的退化失效机理，利用该竞争失效模型，对金属化膜脉冲电容器进行了可靠性分析，确定了该型电容器的可靠度函数。
Then, by analyzing degradation mechanism of metallized-film capacitor, this paper presents a life distribution model of metallized-film pulse capacitor using the models.
通过对这些失效因素的研究并通过一定的再设计手段，可以减少热载流子效应导致的器件退化。
The device degradation induced by HCE can be reduced by studying these failure factors to resign the circuits.
质子交换膜的物理退化被认为是燃料电池失效的重要原因之一。
It is believed that the fast degradation of the proton exchange membrane would lead to the early failure of the PEMFC.
研究表明，即使强度不退化，零件的可靠度和失效率也会随时间逐渐降低；
The result shows that even without strength degeneration, the reliability and failure rate of components decrease with time.
更多是从植被恢复及其水土流失效应方面进行了探讨，为退化生态系统恢复和格局设计提供了极其有用的信息。
Most authors studied vegetation restoration and its effects on soil loss, and provide much valuable information on degraded ecosystem restoration and ecological security pattern design.
强度退化时，可靠度随时间降低较为明显，失效率具有“浴盆”曲线的特征。
When strength degenerates, reliability decreases with time more obviously, and the failure rate has the feature of a bathtub curve.
在人为和空间辐射环境中，高能粒子和光子引起的辐射损伤是电子系统性能退化甚至失效的主要原因之一。
The radiation damage induced-by energetic particles and photons is one of the main reasons of degradation or even failure of electronic systems in man-made and space radiation environment.
在人为和空间辐射环境中，高能粒子和光子引起的辐射损伤是电子系统性能退化甚至失效的主要原因之一。
The radiation damage induced-by energetic particles and photons is one of the main reasons of degradation or even failure of electronic systems in man-made and space radiation environment.
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