噪音频谱 meaning in English
noise spectrum
Examples
- Road traffic noise reducing devices - test method for determining the acoustic performance - normalized traffic noise spectrum
道路交通噪音减低装置.测定声学性能的试验方法.标准化交通噪音频谱 - 3 wheel rail rolling noise , which under 1000hz is caused by the rail s arched flange and above 1000 hz by wheel axle resonance , comprises the major part of the measured spectrum
（ 3 ）轮轨振滚噪音为噪音频谱之最大值，其中1000hz以下为轨道下凸缘之拱形共振所引起， 1000hz以上为轮面之轴向共振所引起。