
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:Asociacion Espanola de Normalizacion

專家解讀視頻
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:Asociacion Espanola de Normalizacion
專家解讀視頻