1.降压
1.to reduce the pressure of air or gas within a container, cabin, or other enclosed space
2.to make a situation less tense
1.You know if you are in an aircraft at 30, 000 feet and the cabin depressurizes, you can have oxygen.
要知道,如果你在3万英尺高的飞行器中机舱开始减压,你能获得氧气。