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- tactical defence alert radar 战术防御警戒雷达
- Measures of tactical defence are meaningless if they are divorced from their role of giving either direct or indirect support to an offensive. 战术上的防御手段，离开直接或间接协助进攻，则毫无意义。
- Tactical Area Defense Alerting Radar 战术地区防御警报雷达
- MANUFACTURE OF THE SYSTEM FOR PEOPLE AERIAL DEFENCE ALERT CONTROL 人防警报控制系统的研制
- One should not run about aimlessly during an alert. 空袭警报期间不可到处乱跑。
- They picked up the yacht on their radar screen. 他们在雷达屏上看到了那艘游艇。
- She is always on the alert for some new calamity. 她总是保持警觉以防某种新的灾难。
- Nagase Stay alert! They have you on radar. 保持警惕！他们雷达已经苗上你了。
- Keep on the alert; we're due for an inspection. 提防着点，轮到检查我们了。
- Be sure to be watchful or alert. 必须留神，千万要提防。
- The radar scanned the sky for enemy planes. 雷达密切监视天空，搜索敌机。
- Dynamo's defence looks disorganize. 迪纳摩队的防守看起来已瓦解了。
- A lot of money is spent on defence. 国防方面的开支很大。
- They finally cracked the defence and scored a goal. 他们终於突破了防守，射进一球。
- The watchtower followed the aircraft by radar. 瞭望塔通过雷达追踪这架飞机的行踪。
- They took up arms in defence of their country. 他们拿起武器保卫祖国。
- He has been brought in to strengthen the defence. 已请他来加强后卫力量。
- They have put the army on the alert. 他们已使军队进入戒备状态。
- Enemy ships were detected on the radar screen. 敌舰的影像已显现在雷达(屏幕)上。
- The alert leopard went up to a deer quietly. 警觉的豹子静悄悄地走近一只鹿。
