8464| 26
|
受力情況如圖所示,。我們這還是憑經驗做,,領導說用50角鋼,,我感覺很懸 |
| ||
| ||
| ||
小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
GMT+8, 2025-2-15 02:55 , Processed in 0.058344 second(s), 19 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.