If the scratch does not go through the protective layer, the unit is serviceable.

A. “非计划性勤务”包括对于停放的飞机进行除冰除雪、在过长时间的停车后对星型发动机进行预先润滑等方面的说明。

B. “非计划性勤务”包括对于停放的飞机进行除冰除雪、在长时间停车后对活塞发动机进行预先润滑等方面的说明。

C. “非计划性勤务”包括对于停放的飞机进行除冰除雪、在过长时间的停车后对活塞发动机进行润滑等方面的说明。

A. It includes cardinal rigging dimensions used in checking damaged aircraft or aircraft undergoing major repair .

B. It includes the basic rigging dimensions for inspection of damaged aircraft or aircraft is undergoing major repairs.

C. Basic rigging dimensions for inspection of damaged aircraft or aircraft experienced major repairs should be included.

A. 它涵盖通用的插件程序或子程序，这些程序能表现出完整的电路功能。它被用于多个特定系统。

B. 它包含能执行完整的电路功能，并被用于不止一个特定系统的插入式组件或子组件的一般覆盖范围。

C. 它包含能展现完整电路函数，并被用于许多特别系统的插件或替代插件的大致范围。

A. 检查并修理腐蚀损伤。

B. 检查由损伤引起的腐蚀。

C. 检查由腐蚀造成的损伤。

A. 在此过程中，使用12英寸螺刀手柄。

B. 在此过程中，使用12英尺扳手手柄。

C. 在此过程中，使用12英寸扳手手柄。

A. Do this procedure again.

B. Repeat this procedure.

C. Do this procedure two times.

A. Emergency illumination refers to an individual and dependent subsystem which is used to provide lighting when the main electrical power fails.

B. Emergency lighting can provide illumination for an individual and independent subsystem in case of main electrical power failure.

C. Emergency lighting is the separate and independent subsystem used to provide illumination in case of primary electrical power failure.

A. The distribution system is used to store and distribute air pressure.

B. Distribution system is used to induct and distribute air.

C. Air inlet system is used to distribute air to all systems.

A. 如果是活页表，使用“标准”或通用的页面布局。

B. 如果发现松动的页面，使用“标准”或通用的装订页。

C. 如果是活页形式，使用“标准”或常用的页面大小。

A. If the unit is not modified, its service life will be possibly shorter.

B. Without the modification of the unit, its service life is likely shorter than present.

C. Without the modification, it is possible that the service life of this unit will be shorter than usual.