| 单词 | superheterodyne |
| 释义 | superheterodyne 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. --n a superheterodyne receiver. Etymology: SUPERSONIC + HETERODYNE |
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