1730. 确保释放放气按钮开关(ON标志灯熄灭)

Make sure that the BLEED pushbutton switch is closed (the ON icon is off)

Make sure that the BLEED pushbutton switch is opened(the ON mark is off).

Make sure that the BLEED pushbutton switch is released (the ON legend is off).

正确答案：C

设备系统操作理论翻译

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1633. Only when both manufacturer and operator do their job can remain an entire fleet of airplanes continuously airworthy

1632. When you apply hydraulic pressure, make sure that the lever does not touch the stop

1631. Check that rods are already adjusted, otherwise adjust them as follows

1630. When the relief valve opens, the pressure decreases

1629. 除非对系统的理解很有必要,否则不需要显示回流管。

1628. This term describes the complete number when it is referred to as a whole

1627. 将操纵杆置于中间位置。

1626. The gyroscope will become stable after approximately 15 seconds

1625. Install packing and backup rings on bearing Slide bearing into cylinder until bottomed

1624. 当交互供油系统打开时,一个燃油泵可以向两台发动机供油