航こう空くう交こう通つう管かん制せいこうくうこうつうかんせいMeanings1nounair traffic controlTechnical term for the service that directs aircraft on the ground and in the air to prevent collisions and manage traffic flow.航こう空くう交こう通つう管かん制せいの仕し事ごとはとても責せき任
