“periodic variation of corona”的概念、定义、翻译、参考文献-科学参考

单词	periodic variation of corona
释义	periodic variation of corona Encyclopedia 理学太阳物理学释 periodic variation of corona日冕周期变化日冕的形状同太阳活动周期有关：在相对黑子数极大时，日冕近于圆形；而在黑子数极小时则较扁，赤道区延伸较远，两极区延伸较近，且有羽状物。因此，日冕的形状也与黑子数一样，有11年的变化周期。
随便看	Courtesan Novel Courtesan Zhang Haohao by Du Mu court gentleman Courtillot Vincent Court Jew court ladies preparing newly woven silk Court Ladies Wielding Fans court mediation Court of Arbitration for Sports Court of Colonial Affairs Court of Justice of the European Union Court of Palace Attendants Court of State Ceremonial Court of the Imperial Clan Court of the Imperial Stud court of the national granaries Court Opera Prefecture court operatic paintings of the late Qing period court paintings of Ming Dynasty court paintings of Qing Dynasty court play court record courtroom argument courtroom interpreting court school

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