“集群灭绝”的概念、定义、翻译、参考文献-科学参考

单词	集群灭绝
释义	集群灭绝 Encyclopedia 理学古生态学释 mass extinction集群灭绝在一个相对短暂的地质时期内（通常不足100万年）及一个较广的地理范围内（通常是一个以上的地理大区），整个生态系统的多样性和个体数量出现突然的、异常的、大幅度的下降，甚至是遭受毁灭性的打击。
随便看	urban sustainable development urban system urban system function structure in the administration area of city urban system planning urban system planning in the administration area of city Urban System Planning of the Zhujiang River Delta urban system scale structure in the administration area of city urban systems engineering urban system spatial pattern in the administration area of city urban system theory urban thermal environment urban topographic survey urban traffic urban traffic construction management system urban traffic management platform urban traffic management system urban traffic system urban traffic tunnel fire urban transportation urban transportation demand management urban transportation development policy urban transportation economy urban transportation layout urban transportation planning urban transportation problems in China

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。