Align the drill until it is perpendicular to the surface.

A. 确保钢索张力正常。

B. 确保锁定线束绷紧。

C. 确保保险丝有张力。

A. 使用一种润滑油，这种润滑油可以润滑松紧螺套。

B. 使用油壶润滑松紧螺套。

C. 使用油罐润滑锁扣。

A. Text shall be as brief and concise as practicable.

B. The text is simple and clear for readers.

C. When preparing the text, it must be easy and relevant.

A. 2毫米的价值是允许的。

B. 允许使用2毫米的价值。

C. 允许使用2毫米的值。

A. Systems/Chapters that are not applicable to the product by the manufacturers may be omitted or, where possible, omitted.

B. Manufacturers may omit Systems/Chapters that do not apply to the product, or omit such Systems/Chapters where feasible.

C. Manufacturers may omit System/Chapters that are not applicable to the product or combine System/Chapters where it is feasible.

A. 将五份缺陷报告送到工程主管部门。

B. 将五份无损报告送到发动机权威人士。

C. 将五份探测报表送到主管工程师。

A. 通风系统使用压力变化将机外空气抽入。空气从客舱厨房和盥洗室区域流经机外通风孔。

B. 通风系统使用不同的压力将空气抽出飞机外。空气流经客舱厨房和盥洗室区域然后到机外通风孔。

C. 通风系统使用压差将空气抽出飞机外。空气从客舱厨房和盥洗室区域的机外通风孔流出。

A. The vendor can build programs to supply response to worthless conditions found in compliance with regulations.

B. The manufacturer may establish procedures to provide feedback on unairworthy conditions that were discovered when complying.

C. The manufacturer may create a process to give feedback on abnormal conditions when it＇s conformed.

A. Measure the vertical distance between the two parts.

B. Test the vertical clearance between the two components.

C. Measure the lateral distance between the two parts.

A. Check such system to determine the cause of interference.

B. Examine part of the system to find the cause of the interference.

C. Examine all of the system to find the cause of the interference.