期(astronomic stage),4600Ma-3500Ma 地球的隐生宙时期(Cryptozoic eon), 3500Ma-590Ma 地球的显生宙时期(Phanerozoic eon), 590Ma-Recent 环境、人口及能源是当代世界面临的三大难题 人类的生存环境本质上是地质环境,其包括大气圈、水圈、生物圈和...
基于8个网页-相关网页
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。
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。
The history of Earth is divided into four eons —starting with the earliest, these are the Hadean, Archean, Proterozoic, and Phanerozoic.
应用推荐