THE partial pressure of the oxygen content in the atmosphere decreases directly with the atmospheric pressure, i.e., with the altitude, the proportion of oxygen in the atmosphere (about 20·9 per cent) remaining practically constant in the substratosphere.
Oxygen Breathing Systems
Aircraft Engineering and Aerospace Technology ; 14 , 4 ; 92-110
1942-04-01
19 pages
Article (Journal)
Electronic Resource
English
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