楼主: sijiruchun
|
从一颗螺母看中国与日本技术差距如此之大 |
发表于 2013-11-19 22:23:34
|
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, 2024-11-6 09:44 , Processed in 0.053250 second(s), 15 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.