
Road Traffic Noise Reducing Devices - Test Method for Determining the Acoustic Performance Part 4: Intrinsic Characteristics - in Situ Values of Sound Diffraction
出版:National Standards Authority of Ireland

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Road Traffic Noise Reducing Devices - Test Method for Determining the Acoustic Performance Part 4: Intrinsic Characteristics - in Situ Values of Sound Diffraction
出版:National Standards Authority of Ireland
專家解讀視頻