As one of the three civil aviation systems, AirTrafficManagement (ATM) system plays a very important role in security of civil aviation.
作为民航三大系统之一，空中交通管理(atm)系统对民航安全起着十分重要的作用。
2
The conception of CDM has been widely applied in the AirTrafficManagement System (ATM) of USA, and accepted by the aviation industry of Canada, Europe and Japan.