431、The symbol means all or most of the rules in that section.

844、 All flow control devices within the system, such as check valves, fuel pumps, accumulators, and relays
should be included.

843、After the ailerons go back to neutral, make sure that they are flush with the flaps.

842、Adjust the potentiometer until you do not hear a hum from the loudspeaker.
调整电位器,直到你听不到从扬声器发出的嗡嗡声。

841、 adjust the indicator to zero once there is contact with the elevator tab leading edge

840、 Adhere to the safety instructions.

839、Add solvent to make the paint more liquid.

838、 ADD FLUID TO the HYDRAULIC RESERVOIR AS NECESSARY.

837、A review of test results applicable to the design was made.

836、A pressurized system can cause injury to persons when they do, work on it.

835、A list of Page Effectivity should be provided the front of each Manual