1384| 5
|
齿轮滑动系数分析 |
| ||
| ||
| ||
点评
不愿让中国人知道他们的技术,一人知道,全国都知道了,得多卖钱才行的。
| ||
|小黑屋|手机版|Archiver|齿轮论坛 www.gearbbs.com
GMT+8, 2025-5-11 09:20 , Processed in 0.173715 second(s), 15 queries , MemCache On.
Powered by Discuz! X3.4 Licensed
© 2001-2023 Discuz! Team.