1970. 更换磨损超标的组件。

A. Before drilling the hole, make sure that the point of the drill head is sharp.

B. Prior to drilling the hole, make sure that the point of the drill bit is sharp.

C. Before you make the hole, make sure that the point of the drill bit is sharp.

A. The section of the engine which contains the sleeve, master and link rod assemblies, cams, cam drive gears, tappet guides, carriers, etc.

B. The section of the engine which Contains the crankshaft, master and link rod assemblies, cams, cam drive gears, tappet, guides, rollers, carriers, etc.

C. The section of the engine which contains the crankshaft, master and manifold assemblies, cams, cam drive gears, tappet, guides, rollers, carriers, etc.

A. Before you can apply it, you must make a paste. To do this, mix the powder with pure water or spirit.

B. Before you can apply it, you must make a paste. To do this, mix the powder with pure water or white spirit.

C. Before you can apply it, you must make a paste. To do this, mix the powder with pure water or ethyl alcohol.

A. Three computers collect data and parameters from the systems and put them together on the data link to the display unit;

B. Three computers gather data and parameters from the systems and put them together on the data link to the display unit;

C. Three Components collect data and parameters from the systems and put them together on the data link to the display unit;

A. Although the aircraft is on the ground or on jacks, this limit applies.

B. This limit applies whether the aircraft is on the ground or on jacks.

C. This limit applies nevertheless the aircraft is on the ground or on jacks.

A. GO

B. ENTER

C. FALL

A. Insert the pin of the apron service door security connector, then you can perform this procedure.

B. The ramp service door safety pin should be engaged until you start this procedure.

C. Firstly you should perform this procedure then you can engage the ramp service door safety connector pin.

A. 飞行员操作手册的本节应包含重要的补充材料(操作信息),以便安全有效地操作配备了各种选装系统和设备的标准飞机。

B. 为了安全顺畅地操作飞机,当标准飞机未配备选装系统和设备时,飞行员操作手册的本节应包含必要的补充材料(操作信息)。

C. 飞行员操作手册的本节应包含适当的补充材料(操作信息),以便在配备了标准飞机所没有的各种选装系统和设备情况下,安全有效地操作飞机。

A. 当动力源(电动,气动或液压)为单个部件提供服务或为单个功能系统提供服务时,该动力源将包含在其所服务的部件或系统中讨论。

B. 当动力源(电动,气动或液压)为不同的部件提供服务或为不同的功能系统提供服务时,该动力源将包含在其所服务的部件或系统中讨论。

C. 当动力源(电动,气动或液压)为单个部件提供服务或为单个功能系统提供服务时,该动力源将包含在其所服务的部件和系统中讨论。

A. Minimum Landing Weight is minimum weight provided for the landing touchdown.

B. Maximum Landing Weight is maximum weight approved for the landing touchdown.

C. Maximum Landing Weight is maximum weight supplied for the landing contact.