| 单词 | 分贝 |
| 释义 | 〔phon〕A unit of apparent loudness, equal in number to the intensity in decibels of a 1,000-hertz tone judged to be as loud as the sound being measured.方（响度级的单位）：一种表现声音的单位，在数量的上等于把1000赫兹声音作测星音时的分贝强度〔decibel〕A unit used to express relative difference in power or intensity, usually between two acoustic or electric signals, equal to ten times the common logarithm of the ratio of the two levels.分贝：通常表示两个声音信号或电力信号在功率或强度方面的相对差别的单位，相当于两个水平的比率的常用对数的十倍〔bel〕Ten decibels.贝尔：10个分贝〔sone〕A subjective unit of loudness, as perceived by a person with normal hearing, equal to the loudness of a pure tone having a frequency of 1,000 hertz at 40 decibels.宋：一种声音的主观单位，如某人正常听力所感觉到的，等于40分贝时为1,000赫兹的无泛音的纯音的高度 |
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