384. If the ambient temperature on the ground is 20℉ (6℃) or lower at an arrival location and a fluid level is below"REFILL"， service the reservoir to just above "REFILL" to avoid the overflow of fluid at the next warmer location

553.易碎接头是常闭活门。( )

552.The formats of performance presentations and related parameters and rules shall follow the examples in this Specification ( )

551.Solenoid valves shall be shown with a notation indicating whether the valve is spring-loaded

to the open or closed position ( )

550.This Specification is designed to provide guidance for the preparation of Handbooks for all types of general aviation airplanes originally certificated at maximum takeoff weights of 12,500 pounds or less [or 5,700 kg]( )

549.Let the temperature of the component decrease until it is the same as the ambient temperature ( )

548.燃油和氧气的混合物能引起爆炸。 ( )

547.Such inserts in the text shall be short and concise and be used to emphasize important and critical instructions ( )

546.请勿更换电池。 只有经过批准的服务提供商才能更换它。 ( )

545.Make a selection from the available shims to get the correct thickness( )

544.相应联邦航空法规批准的所有类型的通航飞机和部件均可准备持续适航文件。( )