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经过对32个实际焊接缺陷超声回波信号的分类识别，平面型缺陷的正确分类率为86%，体积型缺陷的正确分类率为78%；
The investigation of 32 natural weld defects show that 86% of the plane defects and 78% of the volume defects can be correctly classified.
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