4388| 1
|
[几何量仪器] 关于“求超声波测厚仪的变换声速后厚度的示值误差”题目 |
发表于 2009-11-15 10:10:32
|
显示全部楼层
| ||
小黑屋|手机版|Archiver|计量论坛
( 闽ICP备06005787号-1—304所 )
电话:0592-5613810 QQ:473647 微信:gfjlbbs闽公网安备 35020602000072号
GMT+8, 2024-4-27 05:07 , Processed in 0.050603 second(s), 20 queries .
Powered by Discuz! X3.4
Copyright © 2001-2023, Tencent Cloud.