893| 6
|
請問,,硅為何能提高鋼的彈性比例極限,?原理是什么,? |
| ||
點評
哈哈哈哈,,說的好,,應該把它扔進煉鋼爐子,好好問問鋼水
| ||
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(wǎng)安備33038202004372號 )
GMT+8, 2024-12-27 23:27 , Processed in 0.043687 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.