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cryptic era 添加释义

网络释义英英释义

  隐生代

冥古宙(Padean Eon)、隐生代(Cryptic era)4570地球的“婴儿”时期,初生的地壳非常薄,而地核的温度又很高,火山喷发连绵不断。

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Cryptic era

  • abstract: The Cryptic era is an informal term that refers to the earliest geologic evolution of the Earth and Moon. It is the oldest (informal) era of the Hadean eon, and it is commonly accepted to have begun close to 4533 million (about 4.

以上来源于: WordNet

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