hadean
参考词典中hadean的常规释义：
基本释义
- adj.地狱的,阴间的
英英解释
1个名词解释
- the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life
[同] hadean, hadean aeon, hadean eon, hadean time, priscoan, priscoan aeon, priscoan eon
点击查看……1个形容词解释
点击查看……- the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life
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