Ultrasonic transducer is the part of producing ultrasound and supersonic power offers energy to the transducers. 超聲波換能器是產生超聲場的部件，超聲波電源用以驅動超聲波換能器，向其提供能量，使之產生超聲場。
The resulting ultrasonic sound wave can then be directed out in a tightly controlled beam. 由此超聲音波可以用嚴格控制聲音的方向。
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