“白垩纪末大灭绝”的概念、定义、翻译、参考文献-科学参考

单词	白垩纪末大灭绝
释义	白垩纪末大灭绝 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	metrological supervision of quantity of goods metrological traceability metrological traceability analysis of pharmaceutical laboratory metrological verification metrological verification regulation metrological verification scheme metrology Metrology Assurance Outline of Model metrologyfor electromagnetism metrology for fiber-optical communication and sensing metrology for laser industry metrology for light emitting diode light source properties metrology for solar photovoltaics metrology in chemistry metrology in magnetism metrology in the field of time and frequency metrology law Metrology Law of the People's Republic of China metrology of AC impedance metrology of AC quantities metrology of aerospace metrology of DC quantities and resistance metrology of geometricaloptics metrology of high voltage metrology of imaging optics

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。