It is also possible to read about the history of the geological time scale, and find out more about how it is organised, or go to a specific time period using the UCMP geologic time Machine.
从这里可以了解地质时标的历史，地质时标的组成，也可以利用加州大学古生物博物馆的“时间机器”进入特定的地质时期。
It is also possible to read about the history of the geological time scale, and find out more about how it is organised, or go to a specific time period using the UCMP geologic time Machine.
从这里可以了解地质时标的历史，地质时标的组成，也可以利用加州大学古生物博物馆的“时间机器”进入特定的地质时期。
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