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单词 Geologic period
释义

Geologic period

原声例句
Crash Course 天文篇

It behaves more or less like a solid, but over long periods of time, geologic periods of time, it can flow.

它的行为或多或少有点像固体,但在很长的时间周期里(地质学意义上的周期),它其实是流动的。

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They can reveal what species lived during certain geologic periods, how they lived, and how they interacted with their environment.

它们可以揭示特定地质时期生活的物种、它们的生活方式以及它们如何与环境相互作用。

地心游记-The journey to the heart of the Earth

In his hand he wielded with ease an enormous bough, a staff worthy of this shepherd of the geologic period.

他手中轻松地挥舞着一根巨大的树枝,这根手杖配得上这位地质时期的牧羊人。

iBT新托福突破口

So sediment is transported and then deposited and it forms layers on the Earth ’ s surface over time. We examine these layers to learn about different geologic time periods including when they began and ended.

因此沉积物被运输然后沉积下来,随着时间的推移在地球表面形成层。我们检查这些层以了解不同的地质时期,包括它们开始和结束的时间。

中文百科

纪 (地质学) Period (geology)

(重定向自Geologic period)

是地质学上的时间单位,划分代为更小的时间周期。同样代把宙划分为更小的周期。在地球科学岩石、尤其是成串行的岩石叫地层,有序排列的“柱状岩石”具体形成时间阶段是研究的重点。所以这样的时间单位是对应有相似特征的岩石地层单位,这种特征同时发生的其他地方作为岩层沉积物被掩埋在地下。

英语百科

Period (geology) 纪 (地质学)

(重定向自Geologic period)

A geologic period is one of several subdivisions of geologic time enabling cross-referencing of rocks and geologic events from place to place.

These periods form elements of a hierarchy of divisions into which geologists have split the Earth's history.

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更新时间:2025/6/22 23:40:03