thermosphere

The thermosphere is the layer of Earth's atmosphere situated above the mesosphere, characterized by a temperature increase with altitude.

热层、增温层（地球大气层）

• Nitric oxide plays a role in cooling the extremely hot gases surrounding Earth within the thermosphere.

一氧化氮在冷卻熱層中環繞地球的極熱氣體方面發揮了作用。