摘要
Air-ground radiotelephony communication provides the only way for a civilian pilot and air traffic controller to communicate during all phases of a fligh匚The quality of communication during the flight is crucial for aircraft safety.For this reason,it is critical that pilots have good auditory function because of the lack of visual cues during flight.Hearing loss can be endangered among civilian pilots who are routinely exposed to loud occupational noise environments such as the cockpit,and can place the aircrew and passengers at risk.Radiotelephony is a type of semi-artificial language,based on imperative sentences that are standardized,procedural,articulate,and precise clear brachylogy.Mandarin radiotelephony terminology,which is widely used in Chinese domestic air routes,has its own characteristics and comprises three parts:Mandarin Chinese terminology,English capital letters,and English abbreviations of terminology.