In recording sound on magnetic tape or (in early use) wire: an electronic signal at ultrasonic frequencies added to an input audio signal to…
单词 | θ78418 |
释义 | the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > [noun] > radiation field > field generated by wave-form (1) bias1941 In recording sound on magnetic tape or (in early use) wire: an electronic signal at ultrasonic frequencies added to an input audio signal to… |
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