proterozoic stratum 元古代层
Proterozoic group 元古界 ; 原生界
Early Proterozoic 早元古代 ; 代早期
mid-Proterozoic ice age 中原生代冰期
Middle-Upper Proterozoic 中上元古界
Upper Proterozoic 上元古界
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"proterozoic life forms"
以上来源于: WordNet
N the later of two divisions of the Precambrian era, during which the earliest plants and animals are assumed to have lived 原生代 → compare Archaeozoic
ADJ of or formed in the late Precambrian era 原生代的
The history of Earth is divided into four eons —starting with the earliest, these are the Hadean, Archean, Proterozoic, and Phanerozoic.
地球的历史可分为四个时期——依次经历冥古代、太古代、元古代和显生宙。
This paper divides the Paleozoic - Middle-Upper Proterozoic marine basins into the closed bearing basin type and open relief basin type.
本文把古生界一中、上元古界海相盆地分为封闭型承压盆地和开启型泄压盆地两大类型。
The history of Earth is divided into four eons - starting with the earliest, these are the Hadean, Archean, Proterozoic, and Phanerozoic.
地球的历史可分为四个时期——依次经历冥古代、太古代、元古代和显生宙。
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