
BS EN ISO 3745 - ACOUSTICS - DETERMINATION OF SOUND POWER LEVELS OF NOISE SOURCES USING SOUND PRESSURE - ENGINEERING METHOD IN AN ESSENTIALLY FREE FIELD OVER A REFLECTING PLANE
出版:British Standards Institution

专家解读视频
BS EN ISO 3745
PREN ISO 3744 : DRAFT 2009 - Identical
ISO/DIS 3744 : 60.00 (2010) - Identical
PREN ISO 3744 : DRAFT 2009 - Identical
ISO/DIS 3744 : 60.00 (2010) - Identical