
Road Traffic Noise Reducing Devices - Test Method For Determining The Acoustic Performance - Part 5: Intrinsic Characteristics - In Situ Values Of Sound Reflection And Airborne Sound Insulation
出版:British Standards Institution

专家解读视频
Road Traffic Noise Reducing Devices - Test Method For Determining The Acoustic Performance - Part 5: Intrinsic Characteristics - In Situ Values Of Sound Reflection And Airborne Sound Insulation
出版:British Standards Institution
专家解读视频