Altitude Air

standard air pressure at a specified altitude, or altitude at which a pressure would be standard （页面存档备份，存于互联网档案馆） Some of the effects of air pressure

for Minimum Safe Altitude Warning (PDF). Eurocontrol. 19 May 2009 [2010-05-24]. （原始内容存档 (PDF)于2020-08-15）.  Rules of the Air and Air Traffic Services

February 2016: 113. ISBN 978-1-305-65264-4 （英语）. Note that altitude usually refers to a height in the air (above sea level) and elevation refers to height on

aboard the X-15-3, one of three planes in the X-15 fleet. Flying to an altitude above 50 miles, Adams qualified as an astronaut according to the United

altitude）（英语：Specific orbital energy#Tangential velocities at altitude） Kinney, G.F.; K.J. Graham. Explosive shocks in air（英语：Explosive shocks in air）