The second method does not require pressurization of the pneumatic crossover manifold, but utilizes an external air source connected to the air charging valve manifold to pressurize the reservoirs for ground maintenance.

A. 描述飞机发动机时，应简要描述以下附件的相关信息： 1.滑油泵 2.燃油泵 3.液压泵 4.气源泵 5.转速表 6.扭矩计 7.电源 8.螺旋桨同步器 9.排气温度探头

B. 描述飞机发动机时，应简要描述以下附件的相关信息： 1.燃油泵 2.煤油泵 3.液压泵 4.气泵 5.转速表 6.扭力计 7.电源 8.螺旋桨同步器 9.排气温度探头

C. 描述飞机发动机时，应简要描述以下附件的相关信息： 1.滑油泵 2.燃油泵 3.液压泵 4.气泵 5.速度表 6.扭力计 7.电源 8.螺旋桨同步器 9.排气温度探头

A. Schematic diagrams may be used to indicate "flow" and to illustrate the operation of systems such as air control, electrical, fluid power, fuel and turbosystems.

B. Principle charts can be intended to show "flow" and explain the operation of systems as well as air control, electrical, hydraulic power, fuel and turbine systems.

C. Schematic diagrams can be employed to show "flow" and to explain the operation of systems along with air control, electrical, fluid power, fuel and turbosystems.

A. 安装此组件需要专用工具。

B. 对于安装此组件来说批准的工具是必须的。

C. 专业工具对安装此组件是无所谓的。

A. To gain entry to the nearby structure, take out the sensor.

B. Remove the sensor to get access to the adjacent structure.

C. Disassemble the sensor to get access to the adjacent structure.

A. State structure of airframe, wings and tail.

B. Present structure of airframe, wings and empennage.

C. Describe structure of fuselage, wings, and empennage.

A. 当自动驾驶连接时，能从口语警告模块听到口头警告。

B. 当自动飞行断开时，能从口语警告模块听到口头警告。

C. 当自动飞行断开时，能从听觉警告模块听到听觉警告。

A. 任何关于最大乘客座位的规定，例如对乘客数量或座位占用特别要求，都应给予说明。

B. 任何对最大乘客座位数量的规定都应声明，是按照乘客人数规定，或是按照座位占用特别规定。

C. 针对最大乘客座位数量的任何限制都应加以说明，包括乘客人数或座位占用的具体限制。

A. Airspeed values shall be expressed in knots.

B. Airspeed values shall be expressed in nautical miles.

C. Airspeed values shall be expressed in lbs.

A. 张力是正确的。

B. 校正张力。

C. 正确的拉力。

A. After finishing the following procedure, repair the upper flange.

B. Repair the lower flange first during the procedure that follows.

C. Repair the upper flange first during the following procedure.