酷兔词典首页

decibel

美音:[´desə´bel ]点这儿播放单词美音发声
英音:[´desə´bel ]点这儿播放单词英音发声
n.分贝

难易程度:

decibel为短语/超纲词汇

decibel


/'desɪbel; `dɛsə,bɛl/
n unit for measuring the relative loudness of sounds, or for measuring power levels in electrical communications 分贝.

decibel


n[C]written abbreviationdB
[Date: 1900-2000; Origin: deci- + bel unit of sound power (20-21 centuries), from Alexander Graham Bell (1847-1922), US inventor]
a unit for measuring the loudness of sound
 noise levels exceeding 85 decibels