“End-Cretaceous mass extinction”的概念、定义、翻译、参考文献-科学参考

单词	End-Cretaceous mass extinction
释义	End-Cretaceous mass extinction Encyclopedia 理学古生物学释 End-Cretaceous mass extinction白垩纪末大灭绝距今6500万年左右，地球生物圈遭受的一次大规模的集群灭绝事件。
随便看	prefect prefect of a superior prefecture prefectural administrative office prefectural cities from Song to Qing Dynasties prefectural examination prefectural graduate with highest honour prefectural-level annual military drill prefecture prefecture and state prefecture-based recruitment system prefecture records Prefecture,Subprefecture, Military and Industrial districts preferable preferable hypothesis preferable strategy preference preference-based disambiguation preference-based sensory evaluation preference for living arrangement preference function preference-indifference relation preference ordering preference query preference region preference relation

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。