four-way radar surveillance

例句：

1. 1. The four-way radar surveillance system is designed to detect and track enemy aircraft in real-time.
   这个四向雷达监视系统设计用来实时探测和跟踪敌机。
2. 2. The military has been using this technology for decades, providing crucial information for strategic decision-making.
   几十年来，军方一直使用这项技术，为战略决策提供关键信息。
3. 3. In the event of a crisis, this system can quickly identify potential threats and alert authorities.
   在危机情况下，该系统可以迅速识别潜在威胁并通知当局。