
ACOUSTICS - DETERMINATION OF SOUND POWER LEVELS OF NOISE SOURCES USING SOUND INTENSITY - PART 1: MEASUREMENT AT DISCRETE POINTS
出版:Comite Europeen de Normalisation

专家解读视频
ACOUSTICS - DETERMINATION OF SOUND POWER LEVELS OF NOISE SOURCES USING SOUND INTENSITY - PART 1: MEASUREMENT AT DISCRETE POINTS
出版:Comite Europeen de Normalisation
专家解读视频