“二叠纪末大灭绝”的概念、定义、翻译、参考文献-科学参考

单词	二叠纪末大灭绝
释义	二叠纪末大灭绝 Encyclopedia 理学古生物学释 End-Permian mass extinction二叠纪末大灭绝距今约2.52亿年，地球生物圈发生的一次全球性的大规模的集群灭绝事件。
随便看	weak invertibility property weak isomorphism weak isospin weak junction weak key weak lacuna weak large deviation principle weak laser extracorporeal treatment devices weak law weak law of large numbers weak Lefschetz theorem weak lensing weak light weak light detection technique weak light detection technology weak limit weak linear ordering weak-lined star weak-line T Tau star weak link weaklink weak link [junction] weak link junction weak local extremum weak local holomorphy

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