magnetic rose 中文意思是什麼
magnetic rose
解釋
她的回憶-
Magma rose from the mantle forms new crust and slowly squeezes old one aside. since the earth s magnetic field alternates from north to south about every 10, 000 years, the iron - bearing minerals in the crust magnetize and " memorize " the direction of the prevailing magnetic field, just like a magnetic tape recording the geological evidence of aeon
國際天文學聯會international astronomical union由2001年起曾多次就行星的定義作出討論,最終聯會各與會者於2006年8月24日作出共識,定義行星planet為是一顆星體,需附合下面的三個條件:
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