| 单词 | medium frequency |
| 释义 | > as lemmasmedium frequency medium frequency n. an intermediate frequency (of oscillation); (Telecommunications) a frequency of a medium wave, between 300 and 3000 kilohertz. ΘΚΠ society > communication > telecommunication > [noun] > signal > frequency or band of frequencies high frequency1842 low frequency1900 voice frequency1905 audio frequency1913 pulsatance1919 medium frequency1920 side frequency1920 intermediate frequency1924 bass1930 frequency1943 frequency spectrum1955 1920 Whittaker's Electr. Engineer's Pocket-bk. (ed. 4) 348 The result..has been the adoption of two frequencies, a medium frequency for general power and lighting, and a low frequency for systems supplying rotary converters. 1946 Happy Landings (Air Ministry) July 9/1 The radio compass, when tuned to any medium frequency, was seriously affected by thunderstorms... The compass pointer did not point towards the M/F station selected. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) I. 363/2 European medium-frequency (mf) broadcasting channels are assigned at 9-kc intervals rather than the 10-kc intervals used in the Western hemisphere. 1990 Physiotherapy 76 745/2 Both the medium frequency currents themselves, and the amplitude modulated beat frequency, are portrayed as sinusoidal. < as lemmas |
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