2538| 3
|
[声学基础] 可有研究摩擦产生的声音的原理? |
| ||
发表于 2006-11-27 20:56
|
显示全部楼层
| ||
发表于 2006-11-28 18:40
|
显示全部楼层
| ||
GMT+8, 2024-11-18 08:20 , Processed in 0.058951 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4
Copyright © 2001-2021, Tencent Cloud.