ul·tra·son·ics 
(ŭl′trə-sŏnĭks)
(ŭl′trə-sŏnĭks)n. (used with a sing. verb)
1. The acoustics of ultrasonic sound.
2. The science and technology that deals with the study and application of ultrasound.
| 单词 | ultrasonics |
| 释义 | ul·tra·son·ics (ŭl′trə-sŏnĭks)n. (used with a sing. verb) 1. The acoustics of ultrasonic sound. 2. The science and technology that deals with the study and application of ultrasound. |
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