地质时代

[dì zhì shí dài]

• geological period
• geologic(al) period
• geological time
• geologic(al) age
• geological age

参考释义

地质时代

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例句

1. 古生物学对出现在史前或地质时代的生命的形成的研究，体现在植物、动物和其它有机体的化石上
   The study of the forms of life existing in prehistoric or geologic times, as represented by the fossils of plants, animals, and other organisms.