什么样的雷暴通常产生诸如大冰雹和狂风这样最恶劣的天气现象

SFECUs(缝翼/襟翼电子控制组件)以下面的优先顺序中的四个模式中的一个进行操纵: The SFECUs operate in one of four modes in the following priority:1. 人工配平Manual trim2. 自动驾驶仪配平Autopilot trim3. 自动配平Auto trim4. 马赫配平Mach trim

当两个安定面配平通道失效，会显示（ ）信息。When both stab trim channels fail, a （ ）message is displayed.

如果一个安定面配平通道失效，会显示（ ）信息。Should a single stab trim channel fail, a（ ） message is displayed.

安定面配平的活动范围是 ___ 至 _____ 个单位，正常起飞时在绿色范围内。The stab trim range of movement is ____ to _____ units, with the normal takeoff in the green range.

每个配平马达都有一个制动器，以防止配平失控。 配平的范围从___°(前缘向上- 机头向下)至_____°(前缘向下-机头向上)。Each trim motor has a brake to prevent trim runaway. Trim range is from _____° (leading edge up - nose down) to ____° (leading edge down - nose up).

当在地面时，方向舵配平在中立位置，其指示是_______。 On the ground with the rudder trim in the neutral position, the trim indication is ______.

起飞后，方向舵配平指示就是_____，无论配平设置如何。After takeoff, the rudder trim indication is ______ regardless of trim setting.

当在地面时，副翼配平在中立位置，其指示是_______。 On the ground with the aileron trim in the neutral position, the indication is _______.

起飞后，副翼配平指示是_____，无论配平设置如何。After takeoff, the aileron trim indication is ______ regardless of trim setting.

判断正误True or False: 接通自动驾驶必须有一个偏航阻尼器接通。One yaw damper system must be engaged to engage the autopilot.