5236| 14
|
一根2m長(zhǎng)的空心鋼管水平放置,在自身重力作用下?lián)隙仁嵌嗌伲?/span> |
| ||
| ||
| ||
| ||
| ||
| ||
| ||
| ||
點(diǎn)評(píng)
意義不大,你查查彈性模量差多少。
| ||
Archiver|手機(jī)版|小黑屋|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
GMT+8, 2025-7-26 13:08 , Processed in 0.077743 second(s), 16 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.