Based on this, the structure, working principle and fixation of the traveling wave ultrasonic motor are researched.
在此基础上，对所采用的行波型超声波电动机的结构、工作原理及定位进行了研究。
This paper describes the principle of ultrasonic telemeter and the implement of a multi-wave ultrasonic telemeter.
并说明了超声波测距系统的原理，实现了一种多频超声波测距系统。
This paper discussed the principle and the advantage of a ultrasonic wave laser combined disinfection. Thetest equipment was also presented.
本文论述了超声-激光联合杀菌的机理及优越性，介绍了一种超声-激光联合杀菌的试验装置。
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