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通过对一台水闪蒸罐超声探伤所得反射信号的推测和讨论与实践验证，说明对于类似应力腐蚀裂纹的面状缺陷的检测，采用超声波探伤方法优于X射线探伤，事实证明超声波探伤能发现的缺陷．X射线探伤不一定能发现
Through the speculation, discussion and practical verification of the reflection signal obtained from the ultrasonic flaw detection of a water flash tank, the ultrasonic flaw detection method is superior to the X-ray flaw detection method for the flaw detection similar to stress corrosion cracking. It is proved that the ultrasonic flaw detection can be found Defects. X-ray inspection may not be able to find