212.Such inserts in the text shall be short and concise and be used to emphasize important and critical instructions.

A. 　Distances shown are based on weak wind.

B. 　Distances shown are developed with no wind.

C. 　Distances shown are on the basis of gentle wind.

A. 　If you must add a page after the ahead printing,the page should have the number of the preceding page and an alphabetic suffix.

B. 　In the event a page must be added pursuant to the original printing,the page shall carry the number of the preceding page with a letter postfix added.

C. 　If you must add pages after the individual printing,then the page should contain the serial number of the preceding page,and add a suffix letters.

A. 　使倒角的表面粗糙。

B. 　使倒角的表面光滑。

C. 　使舵面的倒角光滑。

A. 　The gearbox is installed behind the pneumatic motor.

B. 　the pump is installed behind the hydraulic motor.

C. 　The pump is installed behind the pneumatic turbine.

A. 　在活塞发动机驱动的飞机上,排气温度指示器用于识别各种功率设置下的油气比。

B. 　在活塞发动机驱动的飞机上,排气温度指示器用于设置各种功率设置下的油和空气的混合比

C. 　在动力活塞驱动的飞机发动机上,排代温度指针用于识别最大功率设置下的油气比。

A. 　Those units means that they can prevent it from eroding.

B. 　Those units provide a method of deicing.

C. 　Those units provide a way to prevent the formation of ice.

A. 　The intention of such terms is to provide definitions which have practical value for technical communication.

B. 　The propose of such terms is to provide definitions with practical value for technical communication.

C. 　The aim of such terms is to provide definitions for practicing valuable technical communication.

A. 　调节螺钉转动后,使压力平稳、

B. 　每次转动调节螺钉后,使压力平稳

C. 　只要转动调整螺钉后,使压力稳定

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. 　If the microswitch stops working,deactivate the procedure of the actuator to avoid the valve damage.

B. 　If the microswitch becomes unserviceable,do the activation procedure of the actuator to prevent damage to the valve.

C. 　Do the activation procedure of the actuator to prevent damage to the valve,unless the microswitch becomes unserviceable.