542、Correct punctuation is important because it shows how the different parts of the text are related and prevents ambiguity.

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

725、Remove the sealant with a blunt scraper.

724、Remove the pin before you turn the pulley

723、 Rectify the defect before you stop the pump momentarily. 在暂时停止泵前先纠正缺陷。