2855| 9
|
12国正式签署TPP协议,狼真的来了 |
| ||
点评
我也是菜鸟,你多去看书,机床结构,轴承,液压夹具,人都有个过程,慢慢的能听懂,再慢慢的能说上话了,就好了
| ||
小黑屋|手机版|Archiver|机械必威体育网址 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2024-10-2 08:38 , Processed in 0.060431 second(s), 25 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.