Atmospheric layer; atmosphere; stratum; aerosphere
大气圈中的任一层
The space shuttle has already entered the next atmospheric layer.
航天飞机已经进入下一个气层了.
Halon fire extinguishing system severely damaged atmospheric layer will be a total ban on the use.
哈龙灭火系统严重破坏大气臭氧层,将被全面禁止使用.

词典释义: