| 单词 | volume unit |
| 释义 | volume unit in American English a unit equal to a decibel for expressing the magnitude of a complex audio signal, as that of speech or music, above a reference level of one milliwatt volume unit in American Englishnoun a logarithmic unit used to measure the magnitude of a sound wave Word origin [1935–40]This word is first recorded in the period 1935–40. Other words that entered Englishat around the same time include: Arts and Crafts Movement, Rhodesian ridgeback, bingo, blitz, prime mover |
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