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

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