According to the high frequency noise of inverter output frequency display signal, the noise absorbing circuit is designed, the measures of reducing noise are presented.
针对变频器输出频率显示信号中的高频噪声，设计了相应的噪声消除电路，给出了进一步提高系统抗干扰能力的措施。
The vibration on blower pipe system of boiler is analyzed, some measures of decreasing vibration are presented in order to reducing noise of boilers.
分析了锅炉引风管道系统的振动。为了降低噪声，提出了减少振动的一些措施。
The reasons of rolling bearing producing vibration and noise were analyzed, the technology measures of reducing vibration and noise were introduced.
分析了滚动轴承产生振动和噪声的原因，介绍了减振降噪的的工艺措施。
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