V2EX thermosphere

Thermosphere

释义 Definition

热层:地球大气层中位于中间层(mesosphere)之上、外逸层(exosphere)之下的一层,大约从8090 公里延伸到5001000 公里高度。该层空气极其稀薄,但会因吸收高能太阳辐射而出现很高的“温度”(指分子平均动能高,不一定感觉“热”)。

发音 Pronunciation

/θr.msfr/

例句 Examples

The aurora often occurs in the thermosphere.
极光常常出现在热层中。

Because the thermosphere absorbs intense solar radiation, temperatures there can rise dramatically even though the air is extremely thin.
由于热层吸收强烈的太阳辐射,那里的温度可能显著升高,尽管空气非常稀薄。

词源 Etymology

thermosphere 由 **thermo-**(表示“热”,源自希腊语 thermē,意为“热”)+ -sphere(“球体/层”,源自希腊语 sphaira,意为“球”)构成,字面意思是“热的层(大气层的一层)”。

相关词 Related Words

文学作品 Literary Works

  • Cosmos Carl Sagan
  • A Short History of Nearly Everything Bill Bryson
  • The Right Stuff Tom Wolfe
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