ir_71 发表于 2014-5-31 16:09:12

EN ISO 3743-2:2009

EN ISO 3743-2:2009
Acoustics - Determination of sound levels of noise Power  Sources using sound pressure - Engineering Methods for small,  movable Sources in reverberant fields - Part 2: Methods for  Special reverberation test rooms (ISO 3743-2:1994)


37946 [/ attach]

37946 [/ attach]



admin 发表于 2014-5-31 16:56:22

谢谢您的分享，金币已奖励

a708847319 发表于 2014-10-20 14:52:13

谢谢帮助！感谢你的分享

jinchuang888 发表于 2016-11-4 14:14:26

感谢楼主分享，万分感谢
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