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

单词	End-Permian mass extinction
释义	End-Permian mass extinction 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	prestressed steel tensioning machine prestressed strand prestressed structure prestressed tendons with anchors prestressed tendons with connectors prestressed wire prestressing prestressing technique prestressing tendon prestretching prestripping prestructure presubscript presumption presumption of causation presumption of constitutionality presumption of fault presumption of innocence presumptive pre-supernova pre-supernova binary pre-supernova object presuperscript pre-support presuppose

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