1469| 4
|
[声学基础] 请教各位如何由振动强度得到声强>? |
| ||
发表于 2009-4-17 03:42
|
显示全部楼层
| ||
发表于 2009-4-17 03:44
|
显示全部楼层
| ||
| |
GMT+8, 2024-11-9 02:09 , Processed in 0.077093 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4
Copyright © 2001-2021, Tencent Cloud.