adiabatic change of air 空气绝热变化
a change of air 改变环境 ; 迁地疗养
daily change of air pollution [环境] 大气污染日变化
change of air mission 改变预定空中作战任务
advise a change of air 建议换换空气
The change of air temperature 气体温度变化
sudden change of air temperature 气温突变
time of air change 换气次数
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