“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	antiauxin antibacterial Antibacterial bedding antibacterial bioceramics antibacterial coatings anti-bacterial fiber antibacterial finishing antibacterial immunity antibacterial mineral material antibacterial peptide antibacterial spectrum anti-ballistic missile system Anti-Ballistic Missile Treaty，ABM antibaryon antibiosis antibiosis plastic antibiotic antibiotic fungicides antibiotic pollutant antibiotic resistance genes antibiotic resistant bacteria infection antibiotics antibiotics and secondary metabolite analysis shell antibiotics-associated diarrhea anti-blast technology of protective engineering

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