7171| 4
|
求下面图形的抗弯截面系数 |
| ||
发表于 2013-8-10 21:47:59
|
显示全部楼层
| ||
| ||
发表于 2013-8-11 14:32:11
|
显示全部楼层
| ||
手机版|小黑屋|咖迷社区(CAXA数码大方) ( 京ICP备05001831号-1 )
GMT+8, 2024-11-29 02:54 , Processed in 0.160861 second(s), 21 queries .
Powered by Discuz! X3.4
Copyright © 2001-2021, Tencent Cloud.