To reduce and control the level of vibration and noise, vibration control technology has been researched and used widely.
为了有效抑制振动和噪声，振动控制技术被广泛研究和应用。
The combined compressor rotor in not able to reach the maximum rating speed on test bench because its level of vibration is very high and exceeds vibration limits.
组合压气机试验件台架试验时振动较大，转子无法达到额定转速。
This paper analyzes vibration signals of rolling element bearing in time-domain and frequency-domain, and puts forward the characteristic parameters to reflect the level of vibration and noise.
分别从时域和频域的角度分析了滚动轴承的振动信号，提出了反映滚动轴承振动水平和噪声水平的各种特征参数。
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