Breathing-hole
131Soccer AM — Format Football/Comedy Starring Helen Chamberlain (1995–present) Max Rushden (2008–present) Andy Goldstein …
132Cabin pressurization — is the active pumping of compressed air into an aircraft cabin when flying at altitude to maintain a safe and comfortable environment for crew and passengers in the low outside atmospheric pressure.Pressurization is essential over 3,000 m (10,000 …
