fjjian 发表于 2014-3-25 10:49:33

ISO 7779:2010

Acoustics -- Measurement of airborne noise emitted by information technology and telecommunications equipment

sigh007 发表于 2014-3-25 10:49:34

http://bbs.infoeach.com/thread-42317-1-1.html

ls9273 发表于 2015-10-22 14:34:58

THANK YOU FOR YOUR KINDLY SHARING :):):):)

hanrunzhe 发表于 2015-10-22 16:16:05

Acoustics -- Measurement of airborne noise emitted by information technology and telecommunications equipment

HBY 发表于 2015-10-24 09:40:45

本帖最后由 HBY 于 2015-10-24 09:43 编辑

给我金币吧，ISO 7779:2010            https://webshop.ds.dk/Files/Files/Products/M247523_attachPV.pdf
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