As defects on composite material structure and composite material reinforced structure are inside, traditional testing method is hardly possible.

复合材料结构和复合材料加固结构的缺陷一般都是内部缺陷，传统的人工目测法很难检测。

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In addition, traditional quality testing methods destroy samples, waste material and prolong production time, which cannot satisfy the need of engineering.

另外，传统质量检测的方法采用抽样破坏方法检测接头质量，既浪费材料，又延长生产周期，不能满足工程需要。

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In addition, traditional quality testing methods destroy samples, waste material and prolong production time, which cannot satisfy the need of engineering.

另外，传统质量检测的方法采用抽样破坏方法检测接头质量，既浪费材料，又延长生产周期，不能满足工程需要。

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