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单词 decibels
释义

decibel /desˈi-bel/

noun

A term used to express a relationship between two currents, power levels or voltages, or to express a level of sound (the tenth part of a bel (qv), and more commonly used)

ORIGIN: L deci-, and bel1
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更新时间:2026/6/6 16:04:50