air defense group for strategic points
Caboodle of Air Defense Force
competent integrated air-defense group
Mixed air defense group
air attack and air defense
Air Defense
电子防御
防空作战
空中防御
防空
防空兵
对空防御
地面防空
防御作战
多节点防空
空防
防空雷达
air defense and anti missile
Air Defense and Antimissile
air defense and anti-missile
Air defense and antimissile operation
air defense anti-missile
air defense array radar