| 单词 | decibel |
| 释义 | Word Frequency decibel(ˈdɛsɪˌbɛl) noun Abbreviation: dB. See also perceived noise decibel 1. a unit for comparing two currents, voltages, or power levels, equal to one tenth of a bel 2. a similar unit for measuring the intensity of a sound. It is equal to ten times the logarithm to the base ten of the ratio of the intensity of the sound to be measured to the intensity of some reference sound, usually the lowest audible note of the same frequency |
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