一、为什么要加压供氧随着航空事业的迅速发展和空军战术的不断演进,现代的空军不仅要在(?)间—般气象条件下飞行,而且也要在夜间复杂气象条件下飞行;不仅要在对流层飞行,而且也要在同温层飞行。目前世界各国均采用密闭座舱以达提高飞行高度的目的,因为具有密闭加压座舱设备的现代飞机,由于飞机座舱中可以保持比外界大气较高的座 First, why pressurized oxygen With the rapid development of aviation and the continuous evolution of the Air Force tactics, modern air force not only in the (?) - like meteorological conditions of flight, but also in complex night meteorological conditions of flight; Not only to fly in the troposphere, but also in the stratosphere. At present, all countries in the world adopt airtight cockpit for the purpose of increasing the flight altitude. Because modern aircraft with hermetically sealed cockpit equipment can maintain a higher seat in the cockpit than in the outside atmosphere