“Besselian day numbers”的概念、定义、翻译、参考文献-科学参考

单词	Besselian day numbers
释义	Besselian day numbers 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。
随便看	mechanical twin mechanical universal testing machine mechanical variable mechanical vector mechanical ventilation mechanical ventilation of swine building mechanical vibration mechanical vibration and shock testing mechanical vibration machine mechanical vibration test mechanical wave mechanical weeder mechanical work mechanical working of ceramics mechanical wounding mechanic-electric-hydraulic system mechanics mechanics analysis of contraction mechanics assembly mechanics education in China mechanics foundation of civil engineering mechanics metrology mechanics of aircraft structures mechanics of biomaterials mechanics of complex materials

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。