3094| 6
|
遠程載荷的一點可不可以視為上面物體的重心? |
| ||
| ||
點評
是的。沒明白你說的什么意思
| ||
Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
GMT+8, 2025-8-24 10:11 , Processed in 0.070008 second(s), 20 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.