Pressurized ventilator( air feed) and smoke extraction fan are interlockingly controlled.
加压送风机（补风）与排烟风机联锁控制。
The extraction fan operates continuously during flight and also on the ground when electrical power is available to the aircraft.
当飞行中和飞机在地面接通电源时，抽气风扇是一直工作的。
The extraction fan 1HU removes air from the lavatories and the galleys through a duct which is installed above the cabin ceiling.
抽气风扇通过安装在客舱天花板上的管道，把厕所和厨房的空气抽出来。
The extraction fan 1HU removes air from the lavatories and the galleys through a duct which is installed above the cabin ceiling.
抽气风扇通过安装在客舱天花板上的管道，把厕所和厨房的空气抽出来。
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