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geological period

/ˌdʒiːəˈlɒdʒɪkəl ˈpɪəriəd/

翻译: 地质学上划分地质时间的基本单位,指地壳演化过程中具有特定岩石、气候和生物特征的一段较长时期,根据地质年代表确定。

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phrase

/ˌdʒiːəˈlɒdʒɪkəl ˈpɪəriəd/C1formalscientific
  • zh地质学上划分地质时间的基本单位,指地壳演化过程中具有特定岩石、气候和生物特征的一段较长时期,根据地质年代表确定。

A fundamental unit of geological time, representing a specific span of years characterized by particular rock formations, climate conditions, and life forms, as defined by the geological time scale.

  1. Time unit in Earth's historyC1formal

    A major division of geological time, representing a specific span of millions of years characterized by particular rock formations, climate conditions, and life forms.

    zh地质时期

    • The Jurassic period is famous for its large dinosaurs.
    • Geologists study rock layers to identify each geological period.
    • The Cambrian period saw a rapid diversification of life forms.