“日冕周期变化”的概念、定义、翻译、参考文献-科学参考

单词	日冕周期变化
释义	日冕周期变化 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	typical characters Typical Character Theory typical coalbed methane basins typical contract typical death by hanging typical dimension typical element typical environment typical events of electronic commerce typical fiber typical geological section typical geological structure typical hydrologic year typicality typicality in literature typical links of control systems typically real function typical mean typical nova typical operation profiles flight test typical period typical representation typical retention curve typical sampling typical scenery

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。