| 释义 |
superheterodyne/su:pəˈhet(ə)rədain, sju:-/ adj. & n.●adj. denoting or characteristic of a system of radio reception in which a local variable oscillator is tuned to beat at a constant ultrasonic frequency with carrier-wave frequencies, making it unnecessary to vary the amplifier tuning and securing greater selectivity (电子)超外差(式)的 ●n. a superheterodyne receiver 超外差式接收机 [SUPERSONIC + HETERODYNE] |