ir_71 发表于 2014-4-16 01:20:30

BS ISO 11204:2010

BS ISO 11204:2010
Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections








2013 发表于 2014-4-16 23:44:47

谢谢分享！！！！！！！！！！！！！！

admin 发表于 2014-4-17 19:31:40


谢谢您的分享，金币已奖励！
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