| 单词 | amplitude-modulate | 
| 释义 | > as lemmasamplitude-modulate   amplitude-modulate  v.				 [as back-formation]			 trans. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > processes > 			[verb (transitive)]		 > modulate (a device) > by varying amplitude amplitude-modulate1938 1938    G. E. Sterling Radio Manual 		(ed. 3)	 vi. 353  				An analysis of a frequency modulated wave shows that it contains the same side bands that are present in an amplitude modulated wave. 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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