Introduced the noise classification and the mechanism of centrifugal fan in the rubber industry, and analyzed the conversion of centrifugal fan noise level.
介绍了橡胶工业用离心风机的噪声分类及噪声机理，分析了离心风机噪声级的换算。
With noise level held to meet national standards, the noise 1m away from fan cover should be confined below 85 dB.
风机噪声达到国家标准，且距风机机壳外1米处的噪声不得大于85分贝。
In terms of air flow and noise level, we actively do AMCA Association of industrial and is widely considered to be fan service to a higher ideal height.
在空气流量和噪音水平方面，我们积极的促进AMCA协会而被广泛认为是将风机工业及服务推向了更高的理想高度。
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