| 单词 | perceived noisiness | 
| 释义 | > as lemmasperceived noisiness   perceived noisiness  n. the amount or degree of perceived noise. ΚΠ 1959    K. D. Kryter in  Jrnl. Acoustical Soc. Amer. 31 1425/1  				The translation from perceived noisiness in noys to perceived noise level in PNdb is expressed by the equation PNdb = (1.2 t log10N)/0.03, where N is the number of noys. 1993    Jrnl. Sound & Vibration 164 425 		(title)	  				The relationship between vehicle noise measures and perceived noisiness. < as lemmas | 
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