在飞行中发现前方的云有如下特征：云体浓厚庞大，垂直发展极盛，象高大山峰；云顶呈白色纤维结构，并扩展成铁砧状。这种云是

当飞机上有交流电源供电时，结冰探测系统持续工作。When the AC power is supplied to the aircraft, the icing detection system works continuously.

结冰探测系统包括两个独立的结冰探测器探头，该探头位于前 机身的两侧。每个探测器探头包括一个探头组件和伸入到气流中的探 针。The icing detection system consists of two independent ice detector probes located on both sides of the front fuselage. Each detector probe includes a probe assembly and a probe extending into the airstream.

飞机装有几套防结冰探测系统how many ice detection systems do a/c have

左右探头开关，在正常飞行中是自动控制的，与开关位置无关The left and right probe switches are automatically controlled in normal flight and independent of switch position.

在地面，在自动模式下，当 其中一个发动机发电机打开且左右探头开关(在防冰控制面板上)选择 关闭,左右皮托管及备用皮托管以一半的动力来加热(自动模式在APU 发电机或外接电源下无此功能)。on ground. In automatic mode, when either engine generator is on and the LH and RH PROBES switches (on the ANTI-ICE control panel) are OFF, the LH and RH pitot probes and the standby pitot probe are heated at half power (automatic mode is not functional when the airplane is being powered by the APU generator or external power).

整流罩防冰和机翼防冰都是利用发动机热引气Both the bleed of cowl and the wing anti-ice are powered by the engine.

机翼防冰控制器是由直流汇流条1和直流重要汇流条供电The wing anti icing controller are powered by DC bus 1 and DC ESS BUS.

引气面板ISOL活门正常在什么位置? what is the normal position of ISOL on Bleed panel?

BLEED SOURCE(引气源)正常在什么位置？what is the normal position of BLEED SOURCE valve？

BLEED VALVES(引气活门)正常在什么位置？what is the normal position of BLEED VALVES？