
BS EN 1793-2. 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:British Standards Institution

专家解读视频
BS EN 1793-2. 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:British Standards Institution
专家解读视频