619、简述和说明任何新型飞行仪表的工作原理

Briefly describe and, explain principle of operation of any new kinds of flight instruments.

Briefly introduce the operation principal of any new kinds of flight apparatus

Briefly describe and explain the operation principle of any new kinds of flight displays.

正确答案：A

869、The check list should be limited to the minimum number of items determined to be essential to aid the pilot in anemergency.

868、The center of gravity moves in relation to the loads on the wings

867、Structural or equipment modifications can change the basic mass and the center-of-gravity coordinates

866、Speed-attitude Correction system automatically maintains a safe flight attitude by correcting for effects of speed.

865、Solvent that stays on the part can cause corrosion.

864、Solenoid valves shall be shown with a notation indicating whether the valve is spring-loaded to the open or closedposition.

863、Rinse the basin with water

862、Remove the sleeve to releasee the sliding tube.

861、 Remove the sealant with a blunt scraper.

860、Remove the pin before you turn the pulley.