air-to-air /ˌærtəˈ(w)ær, ˌɛrtəˈ(w)ɛr/
(adj.)空對空的
air-to-air
adj : operating between or launched from or involving rockets or
aircraft in flight; "air-to-air missiles"; "air-to-air
communications" [ant: surface-to-air, air-to-surface]