當(dāng)前位置:
首頁 >
標(biāo)準(zhǔn)詳情頁

Railway Applications - Track - Noise Barriers And Related Devices Acting On Airborne Sound Propagation - Test Method For Determining The Acoustic Performance - Part 6: Intrinsic Characteristics - In Situ Values Of Airborne Sound Insulation Under Direct Sound Field Conditions
出版:Asociacion Espanola de Normalizacion

專家解讀視頻