Spectrum analysis was performed to determine the micro-mechanism of damage evolution of C fiber 3-D braiding composite material.

通过声发射波形信号的频谱分析，研究了碳纤维三维编织复合材料拉伸损伤的细观机理。

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Then a rock damage evolutional equation was proposed by the authors based on theory of fuzzy probability measurement, and on micro-analysis and macro-observations.

并从微观分析到宏观现象，由模糊概率测度思想提出了岩石损伤累积方程。

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According to the micro-analysis of CCD, it is found that the damage does not take place at the light activated elements but at the grid electrode of the device.

对该器件进行显微观测，在光敏元上没有发现损伤，但在器件的栅极上发现了明显的激光引起的损伤痕迹。

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