Under ultrasonic interval loading with air cooling, it all occurred at an internal inclusion in the whole stress amplitude level.
压缩空气冷却的间歇加载超声试样，在全应力幅范围均为夹杂物引起的内部破坏。
In some cases, the continuous distribution model of fatigue failure life and stress amplitude level is more valuable in analyzing the damage of ponogena under complicated stress.
在某些情况下，如进行复杂应力条件下的疲劳素损伤分布分析，疲劳失效寿命和应力幅水平的连续分布模型更有意义。
One is called the S-N curve of surface fracture mode. It is governed by a crystal slip on the specimen surface, which occurs in the region of short fatigue life and high stress amplitude level.
一组叫做表面破坏模式的S-N曲线，它发生在高应力幅短寿命区，是由试样表面晶体滑移引起的。
The results showed that the critical strength was not only affected by rock's nature, but also was controlled by the stress level, especially stress amplitude.
试验结果表明，岩石的临界强度不仅受岩石固有性质影响，而且受控于应力水平，特别是应力振幅。
The results showed that the critical strength was not only affected by rock's nature, but also was controlled by the stress level, especially stress amplitude.
试验结果表明，岩石的临界强度不仅受岩石固有性质影响，而且受控于应力水平，特别是应力振幅。
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