一个高度敏感的接收器将每个反射脉冲转换，使其与其他测量脉冲波相平均。
A highly sensitive receiver converts each reflected pulse to waves that are averaged with other pulse measurements.
根据柱孔缺陷的端点反射波和衍射波的特点，分析了用端点衍射法测定柱孔类缺陷自身高度的原理。
The principle of measuring the self-height of cylindrical hole defect by ultrasonic tip diffraction technique was analyzed based on the characteristics of reflected and diffracted waves.
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