| 单词 | neper |
| 释义 | neper[ nee-per, ney- ] / ˈni pər, ˈneɪ- / noun Physics.the unit used to express the ratio of two amplitudes as a natural logarithm: equal to 8.68 dB. Abbreviation: Np Also na·pi·er [ney-pee-er] /ˈneɪ pi ər/ . Origin of neperFirst recorded in 1920–25; after J. Neper; see John Napier Words nearby neperNepalese, Nepali, Nepean, nepenthe, nepenthes, neper, nepeta, neph-, nephanalysis, Nephele, nepheline Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for neper
British Dictionary definitions for neperneper / (ˈneɪpə, ˈniː-) / nouna unit expressing the ratio of two quantities, esp amplitudes in telecommunications, equal to the natural logarithm of the ratio of the two quantitiesSymbol: Np, N Word Origin for neperC20: named after John Napier; the name was approved in 1928 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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