anti-aircraft
adjective uk/ˌæn.tiˈeə.krɑːft/ us/ˌæn.t̬iˈer.kræft/
防空的
Anti-aircraft weapons, equipment, or activities are intended to destroy or defend against enemy aircraft.
an anti-aircraft missile/gun/weapon 防空导弹／高射炮／防空武器
anti-aircraft defences/fire 防空工事／炮火