| 单词 | exponential density function | 
| 释义 | exponential density function [´ek·spǝ`nen·chǝl den·sǝd·ē ´fǝŋk·shǝn]  MATHEMATICS A probability density function obtained by integrating a function of the form exp (- x - m /σ), where m is the mean and σ the standard deviation.  | 
	
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