“贝塞尔日数”的概念、定义、翻译、参考文献-科学参考

单词	贝塞尔日数
释义	贝塞尔日数 Encyclopedia 理学天文年历释 Besselian day numbers贝塞尔日数从贝塞尔年首（也即光行差改正后的平太阳赤经等于280°的时刻）恒星的平位置（）变换到恒星视位置（）时所用到的一组参数。 Astronomy Besselian day number贝塞尔日数
随便看	directed beam directed-beam directed broadcast address directed circuit directed closed path directed complete graph directed complete partial order directed complete partial order, DCPO directed convex polyomino directed cycle directed design directed diffusion directed distance directed downward set directed ear directed edge directed-edge sequence directed energy deposition directed evolution directed family directed family of points directed family of sets directed flow directed forgetting directed graph

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。