英语词汇“ultrasonic echo”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	ultrasonic echo
释义	ultrasonic echo ultrasonic echo [¦əl·trə′sän·ik ′ek·ō] (acoustics) An ultrasonic wave that has been reflected or otherwise returned with sufficient magnitude and time delay to be perceived in some manner as a wave distinct from that directly transmitted.
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