89.  Monitoring and redundancy within the flight control system, aircraft sensors, power and hydraulic generation ensure a high degree of availability of the electrical control.飞行操纵系统的监控和冗余、飞机传感器、动力和液压的产生，这些构成了高度有效性的电传操纵。

90.  NOTE : Make sure that the check valve is installed and that it is in the correct position.注意：确保单向活门已经安装，并且位置正确。

91.  NOTE : The end of the sleeve (2) must be within the colored markings painted on the cabin recirculation fan (15).注意：衬套(2)的末端必须在客舱再循环风扇(15)的涂色标记范围内。

92.  OBEY AIRLINE POLICY AND LOCAL HEALTH DEPARTMENT AND LAW ENFORCEMENT REGULATIONS FOR DISPOSAL OF INFECTIOUS MATERIALS.对于传染性材料处理要遵从航空公司政策、地方卫生

部门和法律强制性规定。

93.  OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THIS/THESE MATERIAL/S.USE PROTECTIVE CLOTHING, RUBBER GLOVES AND GOGGLES.使用这些材料时，遵守厂家说明。穿上防护衣，戴上橡胶手套和护目镜。

94.  ON COMPLETION OF THE CLEANING STEPS, PARTS SHALL BE PROTECTED BY MEANS OF PROTECTIVE CAPS OR APPROPRIATE PACKAGING MATERIAL在整个清洁过程中，部件应该用防护堵盖或合适的密封材料进行防护。

95.  On overhead panel, check that IRU mode selector switch is OFF position. As required install covers on each pitot probes.在头顶板上，检查 IRU模式开关在 OFF位。视需安装皮托管套。

96.  On the HP and the LP ground connector put a warning notice in position to tell persons not to supply the ground air.在“高压”和“低压”地面接头上放置警告标牌以告知他人不要提供地面气源。

97.  On the MCDU, push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.在 MCDU上，按压与 RETURN相邻的行选键，直到 CFDS菜单页显示出来。

98.  On the overhead panel 40VU, make sure that the YELLOW/ENG 2 PUMP P/BSW is set to on. (FAULT and OFF lights are out).头顶面板 40VU，确保 theYELLOW/ENG 2 PUMP开关设置在 ON位（FAULT和 OFF灯灭）