mkt can only focus on one subject at a time, but underhood, many ants are working
第三章等效原理 - 卢昌海个人主页
mkt can only focus on one subject at a time, but underhood, many ants are working
第三章等效原理 - 卢昌海个人主页
• 即使在无外场的情况下,一些晶体中的电子自旋也会按照一定方式排列,从而产生自发磁化强度。这些铁磁性的颗粒能够携带古地磁场信息 -marketreflections- ♂ (14627 bytes) () 07/28/2011 postreply 20:18:59