In accordance with the technology of ultrasonic nondestructive pressure measurement, a sing-around device was developed for measuring the propagation time of ultrasonic wave.
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。
This paper introduces the intelligent degree of wave display circuit design in measurement device of engine test instruments.
本文介绍了发动机检测仪检定装置的示波灵敏度电路设计。
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