| 单词 | radio wavelength |
| 释义 | > as lemmasradio wavelength radio wavelength n. a wavelength used for radio; a wavelength of electromagnetic waves corresponding to radio frequency. ΘΚΠ society > communication > telecommunication > radio communications > [noun] > radio wave > length of wavelength1850 radio wavelength1922 1922 Science 17 Nov. 564/2 The Bureau of Standards has developed a very precise method of standardization of radio wave lengths and frequencies. 1929 Ann. Amer. Acad. Polit. & Social Sci. 142 10/1 By listening in..on the radio wavelength of the Catalina link, he could overhear the family conversation on the coast of California. 1972 Sci. Amer. Aug. 51/3 Neutral atomic hydrogen emits and absorbs radiation at the radio wavelength of 21 centimeters. 1991 C. A. Ronan Nat. Hist. Universe 66/2 The jet can be seen optically, as well as detected at radio wavelengths. 2002 Astron. in UK 7/2 At radio wavelengths, radiation can be produced by high-energy electrons moving in a magnetic field. < as lemmas |
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