空中交通调度员通过无线电和飞机保持联络。
Air traffic controllers were in radio contact with the aircraft.
无线电数据系统中的术语，可以从无线电程序中得到交通量信息。
In radio Data System terminology, a radio program where traffic information is available.
Incident Disposition）交通信息规划体系（伊利诺州警方对无线电代码；
TIPS : Traffic Information Planning System (Illinois State Police for Radio Codes;
Incident Disposition）交通信息规划体系（伊利诺州警方对无线电代码；
TIPS : Traffic Information Planning System (Illinois State Police for Radio Codes;
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