decibel
美音:[´desə´bel
]
英音:[´desə´bel
]
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.
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
[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
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