ultrasonics
[ˌʌltrəˈsɑnɪks]
n.
超音波学;
超声波( ultrasonic的名词复数 );
例句:
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The ultrasonics stopped and the light went soft.
超声波停了，灯光也弱了一些。
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In medical and other applications of ultrasonics , a variety of electronic instrumentation is used.
超声波在医学和其它应用中, 要使用许多电子仪器设备.
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Machine parts of irregular shape can be washed very clean by ultrasonics.
用超声波能把形状不规则的机件洗得很干净.