cc523pate 发表于 2018-11-7 19:27:36

JIS A 1405-1-2007 Acoustics-Determination of sound absorption coefficient and im

JIS A 1405-1-2007 Acoustics-Determination of sound absorption coefficient and impedance in impedance tubes - Part1 Method using standing wave ratio

admin 发表于 2018-11-9 10:31:00

谢谢您的分享，金币已奖励!
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