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单词 continuous wave
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continuous wave
continuous wave n. an electromagnetic (esp. radio) wave having constant amplitude and intensity; also attributive.
ΚΠ
1911 A. B. Smith Mod. Amer. Telephony xxv. 663 If it were possible to produce continuous waves for wireless telegraphy.
1920 H. M. Dowsett Wireless Telegr. iv. 70 Continuous wave transmitters.
1920 H. M. Dowsett Wireless Telegr. iv. 92 Any other long-distance continuous wave system.
1933 J. H. Morecroft Princ. Radio Communication (ed. 3) vii. 775 Tube B acts as oscillator and detector (self-heterodyne) for reception of continuous-wave signals.
1951 Gloss. Aeronaut. Terms (B.S.I.) iii. 27 Automatic direction finder, an airborne equipment designed to indicate automatically the bearing of a continuous-wave ground beacon relative to the bearing of the aircraft.
extracted from continuousadj.
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