4471| 5
|
機械設計中的機構(7)——彈簧結構特點及選型 |
評分 | ||
點評
熱處理以后
| ||
| ||
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, 2025-7-11 02:37 , Processed in 0.065091 second(s), 21 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.