change the attitude of the airplane about the pitch axis.   为改变飞机绕俯仰轴的姿态而做的水平安定面的调整。

STAGE, A numbering system for the compressor and         级，

turbine of a jet engine.                                    用于识别喷气发动机的压气机和涡轮的各个段位的一

                                                         种编号系统。

STALL, A flight condition during which lift is destroyed  失速，

due to slow airplane speed or attitude.                     飞行速度过低或姿态而引起升力失去的飞行状态。

STAND PIPE, A pipe raised up from the bottom of a         立式管，

reservoir that allows fluid to enter from the top and flow  从容器底部立起的管道。能使液体从上流流人，然后外

out to the system. It prevents picking up debris off the  流回到系统中，并防止带起容器底部的碎屑。也可控制容

bottom of the reservoir. It can also control fluid height in 器内液面的高度。

the reservoir.

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英汉对照民用航空词典                                    BOEING

STANDARD INSTRUMENT DEPARTURE (SID), A               标准仪表离场(SID)，

published procedure for departing an airport IFR.      用于使用仪表飞行规则离场公布的程序。

STANDARD TERMINAL ARRIVAL ROUTE (STAR), A            标准到场航线（STAR），

published procedure for approaching an airport IFR.        用于使用仪表飞行规则到场的公布程序。

STAR, SEE - STANDARD TERMINAL ARRIVAL                标准到场航线，

ROUTE                                                  见Standard Terminal Arrival Route．

START VALVE, A valve in the engine start system for  起动活门，

supplying air from the pneumatic manifold to the engine 发动机起动系统中，用以从气源总管向发动机起动器供

starter.                                             气的活门。