431.Set the applicable L PACK switch or the R PACK switch, on the p5-10 air conditioning panel, to the AUTO position( )

506.Aerodynamic forces are the basic forces acting on an aircraft in flight that are caused by the movement of the air over the surfaces Thurst acts forward, drag acts rearward, lift acts vertically upward and weight acts vertically downward

505.Procedures contain instructions that tell you how to do a task Long sentences are not easy to understand In STE, the maximum length of a sentence for procedures is 20 words ( )

504.在钢表面上涂油。( )

503.遵守安全说明( )

502.确保阀门可以运行。 ( )

501.维修手册的索引应与第 20 部分的基本标准分类兼容。然而,制造商可以省略不适用于其产品的系统或章节, 或者在可行的情况下合并系统或章节。( )

500.APU 火警系统在驾驶舱内启动与发动机相同的火警警报。( )

499.工具随后可用于安装程序。( )

498.操作后绞车的人员 B 必须锁紧固定装置。( )

497.This procedure gives the instructions to attach the pylon( )