2668. Drains let fuel in the vent system return to the tanks

A. Through releasing the handle, the gas starts to inflate the slide-raft.

B. Operation of the handle releases the gas which can inflate the slide-raft.

C. The gas handle operates to inflate the slide-raft.

A. 用设置开关以重置运行时间。

B. 用重置按钮以重置运行时间。

C. 用重置按钮以重置格林威治时间。

A. 该数字表明了系统的规模

B. 该图片显示了系统的结构

C. 该形状说明了系统的形式

A. Additional information may follow t he check list to make the check list easier for the pilots to understand it.

B. The additional information should be followed by the pilots to make better understanding the check list.

C. The additional information is followed the check list to make the pilots better understanding the check list the pilots should read it in sequence.

A. Make sure that the brightness of the reticle light rapidly drops to zero.

B. Make sure that the intensity of the reticle light lessens radically to zero.

C. Make sure that the brightness of the reticle light is gradually reduced to zero.

A. Such tests or checks will be completed according to the conditions.

B. Such tests or checks will be very complex according to the conditions

C. Such tests or checks will be different in complexity according to the conditions

A. Oil the steel surfaces.

B. Sprinkle the oil to the steel surface.

C. Apply oil to the steel surfaces.

A. 整流环将空气分成两部分。

B. 尖型整流罩将空气分成两部分。

C. 分流型整流罩将空气分成两部分。

A. The flow of the system can be traced as easily as possible through the arrangement of the diagram.

B. A reasonable distribution of the diagram helps to duplicate the flow of the system with least difficulties.

C. The diagram shall be arranged in order to draw a minimum flow of the system without effort.

A. Operation time should be recorded if the pump is in emergency.

B. When you use the emergency pump, record the time of operation.

C. When the pump is for emergency use, record the time of usage.