This group of sealing compounds is also applicable in an emergency.

A. 陀螺的突然运转会引起水平安定面不必要的移动。

B. 陀螺的意外操作会引起垂直安定面不必要的移动。

C. 水平安定面的突然移动会引起陀螺的意外操作。

A. When installing the antenna, the arrows must be aligned and point forward.

B. When installing the radome, you must keep the arrow pointing forward.

C. When you install the antenna, the alignment arrow must point forward.

A. 飞机已按照制造商要求或同等标准进行检查。

B. 飞机已按照运营人要求或同等标准进行维护。

C. 飞机已按照制造商建议或同等标准进行维护。

A. 该部件中的空气循环使得特定部件的温度不超限。

B. 某些部件的温度不超限因此该部件中的空气能够流动。

C. 该部件中的空气的旋转和特殊部件的温度均不超限。

A. Ensure that the porosity is less than the specified error.

B. Ensure that the depth of the hole conforms to the specified value.

C. Make sure that the diameter of the hole is less than the specified value.

A. A three-axis accelerometer gives acceleration data of the horizontal, lateral, and longitudinal axis. The flight data recorder system sensors send data about the position of the flight surfaces and controls the FDAU.

B. A three-axis accelerometer gives accelerating data with the vertical, parallel, and longitudinal axis. The flight data recorder system sensors send data and the position of the flight surfaces and controls to the FDAU.

C. A three-axis accelerometer gives acceleration data along the vertical, lateral, and longitudinal axis. The flight data recorder system sensors send data about the position of the flight surfaces and controls to the FDAU.

A. 关闭流量控制和空调组件的关断活门。

B. 关闭空调组件的流量控制和关断活门。

C. 至于空调组件，关闭流量控制和关断活门。

A. An annunciator device is displayed on the panel, which shows how it works.

B. If an annunciator panel is installed, explain how it operates.

C. If a display appears on the annunciator panel, it explains that how the system works.

A. 用螺母将面板固定在支架上。

B. 用螺栓将面板固定在结构上。

C. 用螺栓将面板固定在支架上。

A. All range distances shall be expressed in nautical miles.

B. All range dimensions shall be defined in kilometers.

C. Nautical miles should not express all range distances.