| 单词 | perceived noise decibel |
| 释义 | perceived noise decibelnouna unit for measuring perceived levels of noise by comparison with the sound pressure level of a reference sound judged equally noisy by a normal listenerAbbreviation: PNdB Words nearby perceived noise decibelpercale, percaline, per capita, perceivable, perceive, perceived noise decibel, percent, percentage, percenter, percentile, percent sign Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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