573 loosely

973、CLOSED

972、carefully

971、 BLUNT

970、BE CAREPUL WHEN YOU() THE LADDER FROM THE COCKPIT TO THE AVIONICS COMPARTMENT.

969 A written sign that identifies a quantity,operation,item, or condition.

968、revision means a modification of information in an existing manual.

967、An official organization that gives approval to something.

966、Although the airplanes addressed in this document are out of production, ABC continues to support them as outlined in our stated company policies

965、ALIGN

964、A fluid that has no shape or volume and that can expand.