chemosphere

/kee-muh-sfeer, kem-uh-/US // ˈki məˌsfɪər, ˈkɛm ə- //UK // (ˈkɛməˌsfɪə) //

化学气圈,化学圈,化学层,化学气体层

Definitions

n.名词 noun

1
- : the region of the atmosphere most characterized by chemical, especially photochemical, activity, starting in the stratosphere and including the mesosphere and perhaps part of the thermosphere.