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寒武纪大爆发
释义
寒武纪大爆发
Encyclopedia
理学
古生物学
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Cambrian explosion
寒武纪大爆发
地球生命系统起源与演化早期发生的一次多样性爆发式增加事件。具体是指距今5.4亿~5.0亿年间,地球海洋生命系统中“突然”出现了门类众多的后生动物(包括无脊椎动物和脊椎动物)。
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classification of thematic map elements
classification of town and country land use
classification of tunnel and underground engineering
classification of viruses
classification on farmland
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classification problem
classification problem of domains
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Classification Society
classification statistic
classification system
Classification System of Chinese Wetland Vegetation
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classification system of mental disorders
classification theorem
classification theorem of finite groups
classification theorem of surfaces
classification theory
Classified accordinɡ to Nature to Druɡ
classified advertisement
Classified Case Records of Famous Physicians
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