实现超声速飞行一直是人类追求的目标之一。具有超声速巡航能力的作战飞机已经装备部队,而超声速民用飞机的使用和研制却屡遭挫折,目前这种形势已经出现了变化。 Achieving supersonic flight has always been one of the goals pursued by mankind. Combat aircraft with supersonic cruise capability have been equipped with units, and the use and development of supersonic civil aircraft have suffered repeated setbacks and this situation has changed.