Tighten the turnbuckle until you have the correct tension in the cable.

To obey the regulations is very important for aircraft maintenance activity.

A. 对于飞机维修中的行为，法规中规定的要求很重要。

B. 了解法规的要求对于飞机维修来说非常重要。

C. 在飞机维修活动中，遵守法规是非常重要的。

Emergency Procedures and other pertinent information necessary for safe operations shall be provided for emergencies peculiar to a particular airplane design, operating or handling characteristics.

A. 对于小部分飞机设计、操作或操纵特性所特有的紧急情况，应提供安全操作所必需的应急程序和其他相关信息。

B. 对于特定飞机设计、操作或操纵特性所关注的紧急情况，应提供安全操作所必需的应急程序和其他相关信息。

C. 对于特定飞机设计、操作或操纵特性所特有的紧急情况，应提供安全操作所必需的应急程序和其他相关信息。

控制后缘襟翼位置和移动的系统部分。

A. That section of the systems which controls the position and rotation of the trailing edge flaps.

B. That portion of the systems which controls the position and movement of the trailing edge flaps.

C. That part of the systems which controls the position and rotation of the flaps.

Revisions are to be made consistent with the format of their specification using the provisions of FAR 21.50 as a basis.

A. 参考修订FAR21.50的格式，应保持与使用的规范一致。

B. 修订应以FAR 21.50规定为基础，与其规范的格式一致。

C. 修订FAR 21.50规章的格式，应参考使用修订规范的格式要求。

对拧动工具做硬度测试。

A. Do a hardness test for turning tool.

B. Conduct a hardness test for the carbide insert.

C. Take a hardness test for the chuck.

Make sure the sealant is continuously squeezed out along the edges of the contact surfaces.

A. 确保密封剂被完全挤出接触面边缘。

B. 确保沿接触面边缘持续涂抹封严胶。

C. 确保封严胶沿接触面边缘不断挤出。

All flow control devices within the system, such as check valves, fuel pumps, accumulators, and relays should be included and indicated. Solenoid valves shall be indicated as such and shall include a notation indicating whether the valve is spring-loaded to the open or closed position. Once a symbol or device is established for a valve or control, it shall be used for this type of unit throughout the manual. The symbols used should be shown and identified in a legend block on the schematic diagram.

A. 系统内的所有流量控制装置，如止回阀、燃油泵、蓄能器和继电器都应包括在内。电磁阀应标明，并应包括一个说明，表明该阀是由弹簧加载到打开或关闭位置。一旦为阀门或控制装置确定了一个符号或装置，它应在整个手册中用于该类型的装置。所用的符号应在原理图的图例块中显示和标识。

B. 系统流程图应对该系统内的所有流量控制装置进行标识，如单向活门、燃油泵、蓄压器和继电器。电磁阀门也应标识，并以注释形式说明该阀门是否使用弹簧加载在开位或关位。一旦确定了各阀门和控制器对应的符号，则应在整个手册中保持一致。

C. 系统内的所有流量控制装置，如止回阀、燃油泵、蓄能器和继电器，都应包括在内并标明。电磁阀应按此指示，并应包括一个符号，指示阀门是弹簧加载到打开位置还是关闭位置。一旦为阀门或控制装置建立了符号或装置，则应在整个手册中将其用于此类装置。所使用的符号应在原理图上的图例块中显示和标识。

Make sure that you complete the procedure before you tow the airplane back to its initial position.

A. 在将飞机恢复至初始状态前，确保已完成该步骤。

B. 确保在完成该步骤前，先将飞机置于初始状态。

C. 将飞机拖回初始位置前，应确保已完成该步骤。

空速可提高操作安全性，应作为常规程序章节的序言。

A. To improve the safety operations, airspeeds shall be a preface to the Normal Procedures Section.

B. The airspeeds shall be provided as an introduction to enhance the safety operations.

C. The airspeeds which may enhance the safety of operations shall be provided as a preface to the Normal Procedures Section.

用适用的公式计算压力。

A. Proper recipe shall be adopted to measure the pressure.

B. The pressure shall be estimated by using accurate equation.

C. Calculate the pressure with the applicable formula.