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单词 θ65502
释义
the world > physical sensation > hearing and noise > thing heard > [adjective] > ultrasonic (4)
superaudible1917

Of a sound, frequency, etc.: above the upper limit of human hearing; ultrasonic. Now rare.

supersonic1919

Designating sound waves or vibrations with a frequency above the range of human hearing (i.e. greater than 20 kilohertz); relating to or involving…

ultrasonic1923

Employing or operated by sound waves or vibrations having a frequency above the range of human hearing (i.e greater than 15–20 kHz); used esp. with…

ultrasonic1923

The more usual synonym of supersonic, adj. 1.

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更新时间:2025/3/22 4:18:13