“太阳黑子的古代观测”的概念、定义、翻译、参考文献-科学参考

单词	太阳黑子的古代观测
释义	太阳黑子的古代观测 Encyclopedia 理学太阳物理学释 ancient.sunspot observation太阳黑子的古代观测在望远镜发明以前直接用肉眼观察日面上的黑子现象。在一般情况下，由于太阳光十分刺眼，看到这种现象的机会不多。但在日出或日落时，或在大雾笼罩或风沙弥漫的天气，日光减弱，就有可能看到日面上的大黑子。
随便看	relation between generation relation by marriage relation extraction relation for the jumps relation greater than relation less than relation matrix relation of between relation of betweenness relation of chord relation of completeness relation of concatenation relation of disjointness relation of equality relation of equipollence relation of following relation of identity relation of inclusion relation of mining and development relation of order relation of subordination Relations relations among the convergence of random variables relations between parents and children relations between spouses

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。