| 单词 | equal loudness contour | 
| 释义 | equal loudness contour [¦ē·kwǝl `lau̇d·nǝs ´kän´tu̇r]  ACOUSTICS A curve on a graph of sound intensity in decibels versus frequency at each point along which sound appears to be equally loud to a listener. Also known as Fletcher-Munson contour.  | 
	
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