1·The castle was built during World War II as an air defense base against German bombers.
该城堡建于二战期间，是个用于抵御德国轰炸机的防空基地。
2·One of these weapons is the air defense dazzler, which can engage enemy aircraft and helicopters at a range of 10 kilometers.
其中一种激光武器是防空致盲器，该武器可以对10公里范围内的敌方飞机和直升机进行干扰。
3·Purchases of some items continued - S-300 air defense systems and billions of dollars worth of jet engines.
购买一些武器的交易仍在继续，有S-300防空系统和价值几十亿美元的飞机发动机。
4·The eight-day exercise is being held in the South China Sea, where both navies will conduct maritime surveillance, air defense and anti-submarine warfare exercises.
为期八天的演习正在南海举行，双方的海军都将进行海上监视，防空和反潜战演习。
5·The newsletter said that two Su-25 jets and one Su-24 bomber were shot down by Russia \ 's own air defense systems and not by Georgian fire.
通讯说，两架苏- 25战斗机和一架苏- 24轰炸机被俄罗斯的防空系统击落，而不是由格鲁吉亚射中。