fjjian 发表于 2013-11-4 09:58:15

P-IEC 61672-1 ed1.0

Electroacoustics - Sound level meters - Part 1: Specifications

sigh007 发表于 2013-11-4 16:05:34

IEC 61672-1-2002 ?

fjjian 发表于 2013-11-4 22:30:51

是的,2002年版的,標題是
Electroacoustics - Sound level meters - Part 1: Specifications
页: [1]
查看完整版本: P-IEC 61672-1 ed1.0