DICT.TW Dictionary Taiwan

 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]