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
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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-
♂
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07/28/2011 postreply
20:18:59
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