国家: country; state; nation空域: airspace系统: system网络: network; electric network me ...国家空域系统: national airspace system国家空域系统(美): national airspace system (nas)综合国家空域系统: gnas general nas国家空域系统进近和着陆系统: naspals nas precision approach and landing system国家空域系统设施间的通信系统: nics nas interfacility communications system国家空域系统的仿真保障设施: nssf nas simulation support facility国家标准系统网络: national standard system network; nssn = national standards systems network国家空域审议: nar national airspace review多系统网络: multisystem network系统网络: system network系统网络表: system network table系统网络组: w3c分句系统网络: clause system network复用系统网络: multisystem network陀螺系统网络: gyro network系统网络建筑: sna:system network architecture系统网络结构: system network architecture(sna); system network architecture, sna; systems network architecture系统网络体系: systems network architecture信息系统网络: isn information system network; network, information system (isn)国家空域数据交换网: nadin national airspace data interchange network国家空域综合后勤保障: nails national airspace integrated logistics support