地面操作，整流罩防冰必须打开当：Ground Operations. The cowl anti-ice system must be ON when

选出描述启动点火的叙述。Select the statement that describes start ignition.

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?