9748| 29
|
鋼板焊接的一個(gè)正方形密閉容器,要承受40噸的壓力,得多厚的鋼板才能滿(mǎn)足? |
| ||
| ||
| ||
| ||
| ||
| ||
| ||
| ||
| ||
小黑屋|手機(jī)版|Archiver|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, 2024-10-30 17:22 , Processed in 0.056985 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.