![]() |
从一颗螺母看中国与日本技术差距如此之大 |
| ||
点评
呵呵!确实很简单,人家在官网上都告诉你原理了!国人呀,又犯纸上谈兵的毛病了!
| ||
| ||
| ||
| ||
Archiver|手机版|小黑屋|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2025-6-16 20:22 , Processed in 0.079877 second(s), 19 queries , Gzip On.
Powered by Discuz! X3.5 Licensed
© 2001-2025 Discuz! Team.