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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。
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Lawrence Tibbett
Lawrence Vambe
Lawrencium
lawrencium
Lawren Stewart Harris
Laws about Library of Congress
laws amendment during Late Qing Dynasty
laws and regulations for concentrator design
laws and regulations of soil and water conservation
laws and regulations on biosafety and biosecurity
Laws and Regulations on Digital Publishing
laws and regulations regarding emissions trading
laws and regulations related to engineering economy in engineering construction
laws and regulations related to labor protection in engineering construction
laws and regulations related to project management in engineering construction
laws and regulations related to public facilities and environmental protection in engineering construction
law school
laws, decrees, regulations and rules
laws for physical motion
laws for the prevention and control of natural disasters
Laws of Burgos
laws of development of natural science
laws of drainage composition
laws of fire prevention and control
laws of genetically modified organisms
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。
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