263.飞机上装有几个厕所勤务面板( ) how many Lavatory service panel is equipped with the plane ?

439.ACM机( )ACM( )

438.利用热膨胀作功降温的部件是( )Using thermal expansion work cooling component is( )

437.ACM机的叶轮风扇的作用( )What is the function of the fan impeller in ACM

436.调温空气调压活门(配平空气压力调节活门)由谁控制( )The Trim Air Pressure Regulating Valve is contorled by ( )

435.再加热的作用是( )What is the function of the reheater

434.组件控制器的通道1和通道2是( )Two identical lane 1 and lane 2 of Pack Controller

433.配平空气供气活门由( )The Trim Air Valves are controlled from( )

432.调温空气关断活门(配平空气关断活门)的功能是( )What is the function of the trim air shut-off valve

431.调温空气调压活门(配平空气压力调节活门)的功能是( )What is the function of the Trim Air Pressure Regulating Valve

430.再循环活门的功能是( )What is the function of the recirculation valve?