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ul·tra·son·ics AHD[ŭl'trə-sŏnʹĭks] D.J.[ˌʌltrəˈsɒnɪks]K.K.[ˌʌltrəˈsɑnɪks]n.(used with a sing. verb)（名词）（与单数动词连用）- The acoustics of ultrasonic sound.超音频声音的音响学
- The science and technology that deals with the study and application of ultrasound.超声学：超声的研究和利用科学和技术
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