Some 20 major items of air traffic control (ATC) equipment and air navigation facilities including radar sensors,radar data processing and flight data processing systems,navigational aids and communication systems were installed.
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释义
20多项主要航空交通管制及导航仪器设施先后完成安装,包括雷达接收装置、雷达资料及飞行资料处理系统、导航仪器及通讯系统等。
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