984、When you replace a word, always make sure that the alternative you select does not change the meaning of the sentence.

339、For simplicity of presentation and understandability,complex systems should be divided into system-function rather than overall master schematic diagrams.

338、Make sure that you complete the procedure before you tow the airplane back to its initial position.

337、Apply the paint with a brush.

336、If the shear pin breaks, do an inspection of the towbar.

335、The time intervals/for the inspectors vary with the types of aircraft

334、Guarantee that all means we use meet the requirement of airworthiness.

333、Check all parts for obvious defects in accordance with standard industry practices.

332、Only approved persons are permitted to stay in this area.

331、Turbine engine tachometers usually measure speed as percentage of the nominal maximum speed ofc the turbines.

330、All persons in this area must use a respirator.