疲劳系数：工程材料检测时，对材料使用负寿命的一个测定系数。
... coefficient of extension 伸长系数，延伸率 coefficient of fatigue 疲劳系数 coefficient of fineness 细度系数 ...
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有必要对疲劳系数的定义作详细的解释。
It is necessary to elaborate on the definition of fatigue coefficient.
有必要对疲劳系数，如延性系数的定义作详细讨论。
It is necessary to elaborate on the definition of a fatigue coefficient such as that for ductility.
因此，在对局部结构进行疲劳强度分析时，应考虑错位对于应力集中系数的影响。
Thus, the stress concentration factor due to the misalignment should be considered in the analysis of fatigue life of the local structures.
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