a1s2d3f4 发表于 2022-1-6 13:17:01

求 ASTM E2611 - 19 Standard Test Method for Normal Incidence Determination of

求 ASTM E2611 - 19 Standard Test Method for Normal Incidence Determination of Porous Material Acoustical Properties Based on the Transfer Matrix Method

a1s2d3f4 发表于 2022-1-17 08:53:25


求 ASTM E2611 - 19 Standard Test Method for Normal Incidence Determination of Porous Material Acoustical Properties Based on the Transfer Matrix Method

lotus999 发表于 2022-1-17 14:41:09

论坛已经无法上传附件了，，，，，，

zhangsong2016 发表于 2022-1-18 14:52:11

http://bbs.infoeach.com/forum.php?mod=viewthread&tid=260188&extra=已上传，待审核

zhangsong2016 发表于 2022-1-19 13:38:34

zhangsong2016 发表于 2022-1-18 14:52 static/image/common/back.gif
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