“end-Ordovician mass extinction”的概念、定义、翻译、参考文献-科学参考

单词	end-Ordovician mass extinction
释义	end-Ordovician mass extinction 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	rock fragmentation rock fragmentation material rock friction rock garden rock-ground Rockhampton rock hardness Rock-hewn Churches at Lalibela rock hydraulic tunnel experiment rocking beam oscillator rocking chair battery rocking curve rocking mirror rocking telescope rock integrated degree Rock Islands Southern Lagoon Rockism Rock Kids rock landform rock landforms in China rocklath rock loading machine rock loosing zone rock magnetic susceptibility meter rock magnetism

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。