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现代工业的发展对无损检测上作提出了越来越高的要求。与此问时，现代科学技术特别是由于技术和微电脑技术的发展也为无损检测仪器的进步提供了坚实的基础。在这种情况下，无损检测仪器，特别是超声探伤仪器近年来得到了迅速的发展。其最显著的标忐就是数字式超声波探伤议的日?
The development of modern industry puts forward higher and higher requirements on nondestructive testing. In connection with this question, modern science and technology have provided a solid foundation for the advancement of non-destructive testing instruments, especially as a result of advances in technology and microcomputer technology. In this case, non-destructive testing equipment, especially ultrasonic testing equipment has been rapid development in recent years. The most significant standard is digital ultrasonic flaw detection day?