decibels

1. 分贝：音量的大小以分贝(decibels)为计量单位. 耳语的音量越分为20分贝,正常说话声约为55分贝,摇滚演唱会的音量则可能达到100分贝. 录音设备所能处理的最低音量到最高音量的范围叫做动态范围(dynamic range)不同设备的动态范围有所不同.

2. 分贝数：decibels with reference to one kilowatt 千瓦分贝 | decibels 分贝数 | decibl with reference to one milliwatt 毫瓦分贝

1. The Beijing Municipal Research Center of Environmental Physical Pollution Control has announced a reduction in noise pollution in the capital by 2 to 3 decibels.

2. decibels什么意思

2. Aircraft now entering into service are typically 20 decibels quieter than comparable products some 40 years ago.

3. My peeve with music is that it doesn't have to be at so many decibels that passing Jumbo Jets complain about the noise.

4. He then took part in the group effort which reached 115 decibels, four higher than the previous record set last year in the US state of Vermont.

5. Experts at the Mayo Clinic in Minnesota say any sound above ninety decibels for long periods may cause some hearing loss.

6. " It is impossible to keep sound levels at less than 50 decibels at night, " Hui said.

7. Railway noise along the new Line 4 subway has been reduced by 15 decibels thanks to new technology.

8. Residential buildings located in areas where the noise level is more than 85 decibels will be demolished under the plan.

9. decibels什么意思

9. Extreme pleasure or extreme anger must be expressed with a fully open mouth and decibels going into double figures.

10. He said figures show that 30 percent of the population of the European Union hears an average traffic noise exceeding 55 decibels around the clock.