
Road Traffic Noise Reducing Devices - Test Method For Determining The Acoustic Performance - Part 2: Intrinsic Characteristics Of Airborne Sound Insulation Under Diffuse Sound Field Conditions
出版:Swiss Standards

专家解读视频
Road Traffic Noise Reducing Devices - Test Method For Determining The Acoustic Performance - Part 2: Intrinsic Characteristics Of Airborne Sound Insulation Under Diffuse Sound Field Conditions
出版:Swiss Standards
专家解读视频