244.It is( )install more than two washers for each bolt.

528.This installation procedure is typical for this type of fastener.

527.Hook the towing arm up to the nose gear.

526.A form of printing shall be used which results in a black image
suitable for reproduction.

525.确保孔的直径小于规定值。

524.Attach the panel to the structure with the bolts.

523.If you do not do this at the same time, the alignment pins will get
caught.

522.Turn the knob to make the display go out of view.

521.Distances shown are based on zero wind.

520.GET ( ) TO THE ACCUMULATOR FOR THE No. 1 HYDRAULIC SYSTEM.

519.把温度计校正到摄氏刻度。