紧急下降程序中，最低安全高度是:For emergency descent procedure, the minimum safe altitude is :
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相关题目
判断正误True or False: 液压系统3低压, 内侧刹车不工作（一旦系统 3 蓄压瓶压力耗尽）。When hydraulic system 3 low pressure, inboard Brakes will be inoperative once system 3 accumulator pressure is depleted.
判断正误True or False:液压系统3低压，停留刹车不工作（一旦系统 3 蓄压瓶压力耗尽）。Hydraulic system 3 low pressure, Parking Brake will be inoperative once system 3 accumulator pressure is depleted.
仅有应急电源时,（ ）不可用。 When on emergency power only,（ ）are not available.
如果两个液压系统失效，计划（ ）度襟翼落地。If two hydraulic systems failed, plan to land with FLAPS （ ）.
判断正误True or False: 如果出现HYD 3 HI TEMP(液压3高温)琥珀色警戒信息，需要执行记忆项目。If HYD 3 HI TEMP caution message (amber) appears, applicable immediate actions shall be executed.
液压系统的指示显示在（ ）The indications of hydraulic systems are displayed on ( )
判断正误 True or False: 升降舵仅由2套液压系统提供动力。 Elevator is only powered by 2 hydraulic systems.
判断正误 True or False: 当液压系统 2 低压时，实际着陆距离将增加。When hydraulic system 2 low pressure, the actual landing distance will be increased.
判断正误 True or False: 在双发失效的情况下，液压发动机驱动泵将继续工作。In the event of a double engine failure，the hydraulic engine driven pumps are still operating.
可通过按压哪个电门使左发液压关闭活门被关闭？The left engine hydraulic shutoff valve is motored closed by pressing which switchlights?
