539、Make an analysis of the oil.

735、The emergency exit doors are used to facilitate evacuation (疏散)that are not normally used for exit
紧急出口门用于方便疏散,通常不用于出口

734、 The circulation of the air in the components is such that the temperature for specific component is not
out of the limit.

733、The check list should be limited to the minimum number of items determined to be essential to aid the
pilot in an emergency

732.The center of gravity moves in relation to the loads on the wings 重心随着机翼上的载荷而移动

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

730、Speed-Attitude Correction system autocratically maintains a safe flight attitude by correcting for effects
of speed.

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

728、Solenoid valves shall be shown with a notation indicating whether the valve is spring-loaded to the
open or closed position. 电磁阀应该显示一个标记,表明阀门是弹簧加载到打开还是关闭位置。

727、Rinse(冲洗) the basin with water. 用水冲洗盆。

726、Remove the sleeve to release the sliding tube 拆卸套管以释放滑动管