If the failure is defined as the final fracture of a component, then both S-N curves and crack growth rate curves reflect the fundamental material behavior under fatigue loading.

如果都把一个构件的最终断裂作为疲劳破坏的定义，则S - N曲线和裂纹扩展率曲线均是反映金属在疲劳载荷作用下的基本材料特性。

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According to the given experimental constant amplitude fatigue life group data, the three parameter exponential function equation can be adopted to describe the constant fatigue P-S-N curve.

对于给定的等幅疲劳成组试验数据，利用三参数幂函数方程来描述P - S - N等幅曲线。

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The native of Brooklyn, N. Y., is in good health, complaining only occasionally of fatigue.

海莫威茨是纽约布鲁克林人，他健康状况良好，只是偶尔为疲劳所苦。

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