| 单词 | waveband |
| 释义 | > as lemmaswaveband waveband n. a range of (esp. radio) wavelengths or frequencies between specified limits. ΘΚΠ society > communication > telecommunication > [noun] > signal > frequency or band of frequencies > band of frequencies sideband1921 frequency band1922 passband1922 waveband1923 S-band1946 baseband1952 guard band1956 vestigial side band1966 the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > [noun] > frequency > band of frequencies or wavelengths band1922 waveband1923 1923 Daily Mail 28 Apr. 5 A receiver which will function efficiently over a waveband stretching from 300 metres to 20,000 metres. 1935 Discovery Sept. 278/1 Recent developments..have made possible..room within this waveband (30 to 75 million cycles) to accommodate several independent high-definition sound and picture channels. 1958 Observer 17 Aug. 8/3 By international agreement, four wavebands are available for television. 1971 I. G. Gass et al. Understanding Earth x. 144/2 Ultraviolet light (primarily in the wave-band 1500 to 2100 angstroms). < as lemmas |
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