455.驾驶舱所用的空气由什么提供( )Where come from of the Cockpit air

247.当机轮温度过高时有什么警告?( ) When the wheel when the temperature is too high to have what warning?

246.机轮风扇如何工作?( ) How to machine wheel fan?

245.机轮冷却风扇何时可以工作?( ) Wheel cooling fan when can it work?

244.重力释放时,”CUT OUT “作用( ) Gravity is released, “CUT OUT” function

243.当正常系统故障,BSCU如何启动备用刹车系统?( )When the normal fault, how BSCU start alternate brake system?

242.刹车系统的蓝系统压力是靠哪个活门隔离的?( )which valve can isolate brake pressure of Blue system system ?

241.转弯手柄上的按钮有什么用?( )push-button which on the nose wheel steering lever function is?

240.LG收放由哪个系统供压( ) which hydraulic system powers LG EXTENSION/RETRACTION?

239.LIGCU的工作 ( ) The work of LIGCU is:

238.主轮在收上前靠什么止动( )Before entry into the landing gear bay, which braking system stopped the main landing gear wheels ?