619| 1
|
祖冲之后人演示“指南车”原理 失传多年再现 |
簽到天數: 294 天 [LV.8]以壇為家I
|
| |||
簽到天數: 2756 天 [LV.Master]伴壇終老
|
| |||
GMT+8, 2024-12-29 00:54 , Processed in 0.015185 second(s), 15 queries , Gzip On, Memcache On.
Powered by Discuz! X2.5
© 2001-2012 Comsenz Inc.