251.更换主LG的PITCH TRIMER后哪些测试是不需要的?( ) The replacement of the main LG PITCH TRIMER which test is not required?

451.空调系统的空气来自哪里( )Where from the air of the air conditioning system

450.组件出口温度通过控制( )改变The pack outlet air temperature control is achieved by( )

449.将组件按压电门按下后,满足什么条件时组件流量控制活门打开( )When pack pushbutton is pressed in,What the conditions do the flow control valve opens

448.增压系统的两个控制器在同一时间内的工作状态是( )The two CPC at the same time the working state is

447.防冰活门的作用是( )What is the purpose of the anti-ice valve

446.组件按钮电门上的故障( )灯什么时候亮( )When will the FAULT light of the PACK pushbutton come on

445.FCV活门类型是( )What type is the FCV

444.飞机在地面时,溢流活门处于什么位置( )The aircraft is on the ground, the overboard valve position is( )

443.控制外排活门马达1的计算机是( )The computer of contorl outflow valve motor1 is( )

442.散货舱加温的热空气来源是( )The bulk cargo compartment Heating is performed by( )