ENVIRONMENT #670136 IATE #45094 pleanáil aerspáis Tagairt an Ghníomhaireacht Eorpach Comhshaoil (GEC) ga Luftraumplanungde airspace planningen Sainmhíniú 1.The activity of organizing or preparing for transportation through the atmosphere above earth's surface. Tagairt 1.RHW; planning, planification de l'espace aérien | organisation de l'espace aérienfr