
Acoustics. Determination of sound power levels of noise sources using sound pressure. Precision methods for anechoic and semi-anechoic rooms
出版:British Standards Institution

专家解读视频
© British Standards Institution 2013
NEN EN ISO 3745:2010 - Identical
SN EN ISO 3745:2010 - Identical
NS EN ISO 3745:2009 - Identical
SS EN ISO 3745 Ed. 2 (2009) - Identical
ONORM EN ISO 3745:2009 - Identical
NF EN ISO 3745:2009 - Identical
UNI EN ISO 3745:2009 - Identical
NBN EN ISO 3745:2009 - Identical
UNE EN ISO 3745:2010 - Identical
ISO 3745:2003 - Identical