666. 所有页面上必须有制造商的报头,出版物标题,飞机型号,发行或修订日期。

The manufacturer＇s marks, publication title, airplane model, and issue or revision date must shown on all pages.

The manufacturer＇s headline, publication title, airplane model, and issue or revision date must print on all pages.

The manufacturer＇s masthead, publication title, airplane model, and issue or revision date must appear on all pages.

正确答案：C

设备系统操作理论翻译

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2697. Make an entry in the aircraft technical logbook to show that you did the aircraft deactivation procedure

2696. Make sure that the fire extinguisher is in the correct locations before you start the engine

2695. Make sure that the values agree with the tolerances

2694. 对甚高频导航系统执行排故程序。

2693. If the fault occurs regularly, do the troubleshooting of the system

2692. Manually push the ram air turbine in the direction of the retracted position

2691. If you do not install the rigging pin, the elevators will move down when there is no pressure in the system

2690. Make shure that the fastener heads are flush with the skin

2689. Install the sealing ring in the groove of the spherical bearing

2688. Those instructions are necessary to carry out the scheduled sevring