空中操作，机翼防冰系统必须打开：Flight Operations. The wing anti-ice system must be ON:

在新产品CRJ900飞机上，什么警戒信息表明左发起动机未能脱开？On new production CRJ900 airplanes, which caution message indicates that the left engine starter has failed to cutout?

判断正误：当发动机不工作时若滑油量＜ 40% , 不能放行。 True or False: The airplane shall not be dispatched if engine oil level ＜ 40% with engine stopped.

左发反推由下列哪个作动：The left engine thrust reverser is actuated by:

选出操作发动机反推所需的条件：Select the conditions that are required to operate the engine thrust reverser mechanism:

把ENGINES SYNCH开关选择到N1或N2时发动机同步将可用，并且：Engine synchronization is available with the ENGINES SYNCH switch selected to N1 or N2 and the:

速度低于（ ）KIAS，ADG可能不能给AC ESS汇流条供电。At speeds below（）KIAS, the ADG may not be able to power the AC ESS bus.

DC电源系统包括（ ）TRU,功率在（ ）。The DC electrical system includes（ ）TRUs, rated at（ ） .

主要发电机的额定功率是：Main generators are rated at:

哪个DC BUS不是总显示在DC简图页上？Which DC BUS is not always displayed on the DC synoptic page?

正常飞行条件下，ESS TRU2由下列哪个供电？Under normal flight condition, where does ESS TRU 2 receive its power?