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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
释
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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hygienic characteristic of office place environment
hygienic characteristics of public place environment
hygienic investigation
hygienic management of water supply and sewage
hygienic protection of soil
hygienic standards for the design of industrial enterprises
Hyginus crater
hygroautometer
hygrochasy
hygrocole
hygrodeik
hygrodrymium
hygrokinesis
hygrometer
hygronom
hygrophyte
hygroplasm
hygroscopicity
hygroscopicity and growth factors
hygroscopicity of wood
hygroscopic mineral material
hygroscopic water
hygrostat
hygrotaxis
hygrothermal effect of composite
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