1045| 1
|
日本开发的镱原子光晶格钟 900万年才有一秒的误差 |
簽到天數: 2044 天 [LV.Master]伴壇終老 成長值: 98955
|
| |||
簽到天數: 147 天 [LV.7]常住居民III
|
| |||
GMT+8, 2024-11-14 19:14 , Processed in 0.025724 second(s), 16 queries , Gzip On, Memcache On.
Powered by Discuz! X2.5
© 2001-2012 Comsenz Inc.