A、 风扇有自动开关用以保护风扇过热受损。
B、 风扇有保护电门用以防止风扇过度受损。
C、 风扇有热电门用以避免风扇过热受损。
答案:C
A、 风扇有自动开关用以保护风扇过热受损。
B、 风扇有保护电门用以防止风扇过度受损。
C、 风扇有热电门用以避免风扇过热受损。
答案:C
A. 示意图应倾向于处理整个系统,而不是子系统,如空调系统,而不是空调系统内的压气机或供气扇。
B. 示意图应倾向于处理整个系统,而不是子系统,如空调系统,而不是空调系统内的涡轮或供气扇。
C. 示意图应倾向于处理整个系统,而不是子系统,如空调系统,而不是空调系统内的涡轮或供气扇。
A. Before you can apply it, you must make a paste. To do this, mix the powder with pure water or spirit.
B. Before you can apply it, you must make a paste. To do this, mix the powder with pure water or white spirit.
C. Before you can apply it, you must make a paste. To do this, mix the powder with pure water or ethyl alcohol.
A. Air date computer got pitot and static pressure, together with the total air temperature.
B. The ADC is not able to give output to flight control computers.
C. The ADC can produces an indication of indicated airspeed and true airspeed, but can not produce Mach number.
A. 为了便于阅读和交叉参考,如可行,插图、图表和表格应采用垂直布局。
B. 插图、图表和表格应以横向方式呈现,以便于阅读和参考。
C. 在实际使用中,通常纵向排列插图、图表和表格,这样参阅更轻松。
A. 机身上有三个顶升点
B. 机体上有三个基准点
C. 机腹上有三个插孔
A. Using the wet wing concept, all fuel is stored in three tanks. These three tanks include main tank1, main tank 2 and center tank. Center tanks are made up of the main wing structure.
B. Using the wet wing concept,all fuel is stored in three tanks. These three tanks include main tank 1, main tank 2 and center tank. These three tanks are made up of the main wing structure.
C. Using the wet wing concept,all fuel is stored in three tanks. These three tanks include main tank1, main tank 2 and center tank. The primary wing structure consists of main tank 2 and center tank.
A. Making use of simplified schematics and drawings explain how this system operates, including warning devices and control features in use.
B. Use schematics and drawings as briefly explain the operation of the system, including warning devices and control features in use.
C. The simplified diagrams and drawings are the indication of the system operation including warning devices and control features in use.
A. The pressure and velocity of air increase when it flows through the comressor.
B. The pressure of air decreases when it flows through the comressor.
C. The pressure of air increases when it flows through the comressor.
A. 用标签标识拆下的部件,这样做有助于随后的装配过程。
B. 保存好拆下标签的零件,这个方法有助于随后的装配过程。
C. 用标签识别拆下的林间,这个办法有助于子部件的安装。
A. 液压系统给作动筒提供作动力。
B. 液压系统为作动筒提供动力。
C. 液压系统供电给作动筒。