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单词 sone
释义

WordReference Random House Unabridged Dictionary of American English © 2024
sone  (sōn),USA pronunciation n. 
  1. Physicsa unit for measuring the loudness of sound, equal to the loudness of a sound that, in the judgment of a group of listeners, is equal to that of a 1000-cycle-per-second reference sound having an intensity of 40 decibels.
  • Latin sonus sound1
  • 1945–50

Collins Concise English Dictionary © HarperCollins Publishers::
sone /səʊn/ n
  1. a subjective unit of loudness equal to that experienced by a normal person hearing a 1 kHz tone at 40 dB
Etymology: 20th Century: from Latin sonus a sound
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