wài​qì​céng

exosphere

Senses

外气层/ 外氣層 wài​qì​céng variants: 外气层 exosphere

the outermost layer of the atmosphere, located above the thermosphere, where gas molecules can escape into outer space

References

see 热层/熱層 外气层/外氣層
same_as 散逸层/散逸層 外气层/外氣層