192、The audio part of the video entertainment is delivered to each individual passenger seat on selected channels of audio entertainment system and also may be connected to the PA system speaker

1131、Chemical oxygen-generating systems require less space land weigh less than gaseous oxygen systems supplying the same Number of people.

1130、Line Maintenance should be understood as any maintenance that is carried out before flight to ensure that the aircraft is for the intended flight.

1129、损伤容限设计原理已成功地运用到新一代飞机的设计上。

1128、将零件运输到大修车间。

1127、Do not use fuel with unknown properties.

1126、To prevent unwanted friction, polish the surface.

1125、The pressure lines divide-in different directions.

1124、Determine which door has failed to close.

1123、Located in the flange connecting the generator and drive assemblies, ports make oil flow between the constant speed3drive and the generator possible.

1122、Moving the speed brake lever will ＇provide the clearance needed to remove the center lower display unit.lvvo0I f