The AC electrical power distribution on board is carried out in several steps: from the different sources towards the main AC busbars; then, from the main AC busbars, either directly towards important consumers (pumps, galleys...), or towards the associat

A. It is permitted to show the legends within the diagram instead of listing at the bottom or on an adjacent page by the abbreviation number.

B. Legends shall be explained in a simple way within the diagram at the bottom or on an adjacent page except for abbreviation with numbers in a list.

C. If the space is enough, the legends shall be stated within the diagram and do not list them by numerical abbreviations at the bottom or on an adjacent page.

A. Peel the coating from the harness.

B. Strip the insulation from the wire.

C. Stripe the insulation from the harness.

A. When the section or subsystem element number is followed with zeros in the subject element number (28-20-00) , the information is applicable to subsystems within the system.

B. This information applies to subsystems of the system when the topic number (28-20-00) following the section or subsystem part number is zero.

C. This information is suitable to subsystems in the system when the topic unit number (28-20-00) is followed by the section or subsystem unit number with zeros.

A. 如果滤子在极短的时间堵塞，送到实验室进行污染分析。

B. 如果滤子使用期间出现异常，请对污染物进行适当的检测。

C. 实验室污染分析用于防止滤子在短时间内堵塞。

A. The work must be completed according to the boss instructions.

B. The work must be done in compliance with the instructions in the Maintenance Manual.

C. The work must be done according to the Maintenance Manual ahead of time.

A. 为使接头移除更容易，根据手册转动外壳一圈，然后再转一圈。

B. 为了更容易地放置插销取出器，将容器人工地对准一个方向，然后再调整到其他方向。

C. 为了易于拆卸销钉，手动将罩盖先朝一个方向转动，然后再朝另一个方向转动。

A. Wait for the paint to dry completely before polishing it again.

B. Do not apply the second layer of paint if the first layer has dried thoroughly.

C. Let the first layer of paint dry fully before you apply the second layer.

A. Hand tools can be divided to four basic categories: kicking tools, holding tools, cutting tools, bending tools.

B. Hand tools can be divided to four basic categories:kicking tools, clutching tools, cutting tools, rolling tools.

C. Hand tools will fall into four basic categories: pounding tools，holding tools， cutting tools and turning tools.

A. Do not lift the aircraft on jacks if the wind speed is more than 20 MPH.

B. Do not hoist the aircraft on chocks if the wind speed is more than 20 MPH.

C. Do not raise the aircraft on jacks if the wind speed is more than 20 km/h.

A. Check valve, that allows fluid blows in one direction completely but blocks all flow in the other direction, is a pneumatic or hydraulic system component.

B. Oneway valve is a hydro or gaseous system component that allows fluid flows in one direction freely but blocks all flow in the opposite direction.

C. Check valve is a hydraulic or pneumatic system component that allows full flow of fluid in one direction but blocks all flow in the opposite direction.