单词 | radio pulse |
释义 | > as lemmasradio pulse radio pulse n. a very brief radio signal; a pulse of radio waves, esp. from a celestial object. ΚΠ 1929 Proc. IRE 17 2034 The results of further observations on radio transmission phenomena associated with the reflections of radio pulse and spark signals are outlined. 1945 Nature 15 Sept. 319/2 The ‘H’ and ‘Oboe’ systems, in which the primary radio pulses ‘interrogating’ the mobile craft automatically release from it a series of reinforced, coded, and conveniently frequency-displaced reply pulses. 1993 Time 22 Mar. 63/3 The dead star generates an enormous magnetic field, which in turn sends out powerful radio pulses (hence the name pulsar). 2000 New Scientist 10 June 5/3 NASA's image spacecraft, which has antennas longer than the Empire State Building is tall, uses radio pulses to image the plasmasphere. < as lemmas |
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