英语词汇“ultrasonics”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	ultrasonics
释义	ul·tra·son·ics \ˌəltrəˈsäniks, -nēks\ noun plural but usually singular in construction Etymology: from ultrasonic (I), after such pairs as English economic : economics : the science of ultrasonic phenomena : supersonics
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