Put the airplane back to its usual condition.

A. A centrifugal pump supplies hydraulic fluid to the unit.

B. The unit is isolated from hydraulic fluid through a centrifugal pump.

C. A centrifugal pump withdraws hydraulic fluid from the unit.

A. 臭氧转换器通过臭氧对膜材料进行氧化，从而防止空气分离模块受损。

B. 臭氧转换器防止臭氧对膜材料进行氧化，从而避免空气分离模块受损。

C. 臭氧转换器防止空气分离模块受损，以使得臭氧对膜材料进行氧化。

A. This is the portion of the systems used to generate, regulate, control, and indicate AC electrical power.

B. Here is that portion of the systems used to generate, regulate, control, and indicate AC electronic power.

C. That is the portion of the systems used to generate, increase, control, and indicate AC electrical power.

A. Manufacturer determines specific range properly to describe sophisticated and professional information. The information can be put in Maintenance Maunal or other documents.

B. Detailed information on more intricate and specific subjects can be written in two ways: Maintenance Manual or individual documents. The two ways are dependent on manufacturer＇s option properly.

C. It is up to the manufacturer to decide where and to what extent to include detailed information about more sophisticated and professional topics, either in the common Maintenance Manual or in another new documents.

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. 本规范涉及FAA的各种调节。

B. 本规范参考了各种FAA条例。

C. 本规范称作FAA的各种规章。

A. 如果飞机在地面，系统的出口保护控制面不受风的吹动。

B. 尽管飞机在地面，保护系统的这部分控制风的移动面。

C. 当飞机在地面上时，系统的这部分防止操纵面受风的影响而运动。

A. 制定本规范的目的是为了降低成本。

B. 本规范是为减少失误而制定的。

C. 规范的制定是为了发展航空安全。

A. 如果你不能脱开杆的位置，新杆的长度很可能需要调节。

B. 如果你不能断开杆和活塞，可能量错了新杆的长度。

C. 如果你不能接合杆和活塞，新杆的长度可能是不正确的。

A. 这组密封剂不适用于紧急情况。

B. 这些防护化合物也适用于紧急情况。

C. 这批密封化合物同样适用于紧急情况。