BLEED valve, a valve in the pneumatic system for air supply from the engine or auxiliary power unit to the pneumatic manifold.
引气活门，气源系统内，使来自发动机或辅助动力装置的空气进人气源支管的活门。
In last-gen aircraft, high-pressure gas is taken from the engine and transported through bleed valves to the auxiliary power system, which controls air-conditioning, for example.
举个例子，在上一代飞机中，引擎中的高压气通过排除阀到达辅助动力系统，该系统控制着空调设备。
The pneumatic system controls the temperature and the pressure of engine bleed air source.
增压引气控制发动机引气的温度和压力。
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