英语词汇“ultrasound”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	ultrasound
释义	ultrasound /ul"treuh sownd'/, n. 1. Physics. sound with a frequency greater than 20,000 Hz, approximately the upper limit of human hearing. 2. Med. the application of ultrasonic waves to therapy or diagnostics, as in deep-heat treatment of a joint or imaging of internal structures. Cf. ultrasonography. [1920-25; ULTRA- + SOUND¹]
随便看	black currant blackdamp Black Death black diamond black disease black dog black duck black dwarf blacken blackened Black English Blackett black eye black-eyed pea black-eyed Susan blackface blackfellow blackfellow's bread black-figure blackfin blackfire blackfish black flag black flux black fly

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