“Common Era”的概念、定义、翻译、参考文献-科学参考

单词	Common Era
释义	Common Era Encyclopedia 历史学〔史学理论〕释 Common Era公元一种以传说中的耶稣诞生之年为元年的纪年法。中国称西历、西元。现行纪年时间按照1582年时任罗马教皇的格里高利十三世的批准颁行，故又称格里高利历。
随便看	second normal stress difference second number-class second of arc second of time second open Second Opium War second order second-order advantage second order arithmetic second-order arithmetic second-order calibration and three-way calibration second-order circuit second order coherence second-order coherence second-order coherence and second-order correlation function second-order constraint qualification second order correlation second order correlation function second-order correlation function second-order curve second order day number second-order derivative second-order design second-order difference second-order differential

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。