第三人稱(chēng)復數：ultrasonics
ultrasonic基本解釋
形容詞[聲]超聲的; 超音波的，超音速的
名詞超聲波
ultrasonic詞典解釋
1. 超聲波的
Ultrasonic sounds have very high frequencies, which human beings cannot hear.
ultrasonic的翻譯
ultrasonic英英釋義
adj
1. having frequencies above those of audible sound
Synonym: supersonic