
Bs En 60534-8-4 Ed 3.0 - Industrial-Process Control Valves - Part 8-4: Noise Considerations - Prediction Of Noise Generated By Hydrodynamic Flow
出版:British Standards Institution

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Bs En 60534-8-4 Ed 3.0 - Industrial-Process Control Valves - Part 8-4: Noise Considerations - Prediction Of Noise Generated By Hydrodynamic Flow
出版:British Standards Institution
专家解读视频