设计了一种柔性导向焊缝动态跟踪装置，实现了超声波连续自动检测中焊缝的稳定动态跟踪。
A flexible guiding weld dynamic tracking unit is designed out and stable dynamic tracking of ultrasonic continuous automatic inspection is realized.
讨论混凝土的超声波检测，包括其原理和装置，以及采用计算机对信号的处理、判断和自动测量的方法。
Ultrasonic nondestructive testing of concrete is described including its principle, instrument as well as the processing, identification and automatic measurement of signals with computer.
针对超声波无损压力检测技术，开发了一种采用回振法测量超声波传播时间的装置。
In accordance with the technology of ultrasonic nondestructive pressure measurement, a sing-around device was developed for measuring the propagation time of ultrasonic wave.
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