
ACOUSTICS - MEASUREMENT OF THE INFLUENCE OF ROAD SURFACES ON TRAFFIC NOISE - PART 2: THE CLOSE-PROXIMITY METHOD (ISO 11819-2:2017)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
ACOUSTICS - MEASUREMENT OF THE INFLUENCE OF ROAD SURFACES ON TRAFFIC NOISE - PART 2: THE CLOSE-PROXIMITY METHOD (ISO 11819-2:2017)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频