“奥陶纪末大灭绝”的概念、定义、翻译、参考文献-科学参考

单词	奥陶纪末大灭绝
释义	奥陶纪末大灭绝 Encyclopedia 理学古生物学释 end-Ordovician mass extinction奥陶纪末大灭绝距今约4.44亿年，地球海洋生命系统发生过的一次大规模的多样性快速下降事件。
随便看	variance swap variance test variance within classes variance within laboratory variant variant angina pectoris variant characters variant design Variant Dictionary (Taiwan Region of China) variant forms of term variant forms of the same word variants calculation variants of a formula variate variate-difference method variate in standard measure variate transformation Variation variation variational variational analysis variational Bayes variational calculus variational calculus in the large variational characteristic

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。