实车试验结果表明，利用传递特性模型可以确定车外加速噪声的主要振源、声源及其贡献。
The results of real vehicle test show that utilizing transfer characteristics model can identify the main noise and vibration sources and their contribution to exterior acceleration noise of vehicle.
通过对通讯车辆噪声和振动特性的分析，介绍了在该车上进行的振动和噪声改进对比试验的试验方法及试验原理；
Through an analysis of noise and vibration characteristics, an experimental principle and method is introduced to eliminate the noise and vibration in communication automobiles.
本文以某轮式装载机为样机，在进行大量试验的基础上，对影响驾驶室内噪声的主要噪声源和驾驶室本身的声学特性进行了分析。
Based on a large number of tests, the noise sources of a wheeled loader cab are determined and the acoustic characteristic of the cab is analyzed.
试验和分析木工平刨床空转和切削时的噪声源、噪声频率特性和各种降噪方法。
Testing and analyzing the noise source of idle run and cutting, noise frequency characters and all kinds of methods for noise reduction for the surface planer were carried out.
根据噪声来源和特性制定了治理方案，分析了试验应用效果。
Then, the controlling plan are carried out according to the resource and the characteristic of the noise. At last, this practical effect is analyzed.
在试验装置上进行了冷却塔噪声模拟试验，试验装置较好地模拟了火电厂湿式自然通风冷却塔的中高频噪声特性。
The middle and high-frequency noise of the wet-style natural-ventilation cooling tower is simulated by test rig in tab.
在试验装置上进行了冷却塔噪声模拟试验，试验装置较好地模拟了火电厂湿式自然通风冷却塔的中高频噪声特性。
The middle and high-frequency noise of the wet-style natural-ventilation cooling tower is simulated by test rig in tab.
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