楼主: sy0116
|
不改变尺寸和材料能把弹簧刚度提高3倍?! |
| |
发表于 2011-12-23 07:23:15
|
显示全部楼层
| |
发表于 2011-12-23 12:05:20
|
显示全部楼层
| ||
小黑屋|手机版|Archiver|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2024-12-23 22:40 , Processed in 0.050971 second(s), 13 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.