PBN has the following advantages:
A.Flexible track selection B.Reduce air ground communication and lighten the workload of air traffic controllers C.Promote the increase of air route and terminal area capacity D.All right正确答案D
PBN has the following advantages:
A.Flexible track selection B.Reduce air ground communication and lighten the workload of air traffic controllers C.Promote the increase of air route and terminal area capacity D.All right正确答案D
