采用加权平均法定出疲劳目标可靠度指标，推导了疲劳设计公式，并给出各分项系数的建议值。
With the method of weighting average, index of goal reliability for fatigue was dealt with. Formula of fatigue design for military bridge was presented. Subentry coefficients were suggested.
热疲劳寿命是评价柴油机可靠性的一个主要指标。
Low cyclic thermal fatigue life is an important parameter for evaluating the reliability of diesel engine.
在疲劳荷载、腐蚀共同作用下，拉索的可靠指标下降速度很快，疲劳极限状态对斜拉索及斜拉桥的安全起控制作用。
Because of the interaction of external loads and corrosion, the reliability index decays very quickly. And fatigue limit-state will take control of the safety of the cables and Bridges.
计算得到平台结构关键部位中关键节点的疲劳可靠性指标，绝大部分数值都大于3，即安全概率接近于1。
The fatigue reliability indexes of key nodes in the platform key structure are mostly larger than 3, which means the safety probability of the platform structure is adjacent to 1.
机械 构件的疲劳寿命是其可靠性的一个重要指标。
The fatigue-life of a mechanical part is a very important index for its reliability.
机械 构件的疲劳寿命是其可靠性的一个重要指标。
The fatigue-life of a mechanical part is a very important index for its reliability.
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