high altitude reconnaissance

例句：

1. 1. The military used high altitude reconnaissance to monitor the enemy's movements.
   军队利用高空侦察来监视敌人的行动。
2. 2. The drones were equipped with high-resolution cameras for high altitude reconnaissance.
   这些无人机配备了高分辨率相机，用于高空侦察。
3. 3. The government launched a new high altitude reconnaissance satellite to improve its surveillance capabilities.
   政府发射了一颗新的高空侦察卫星，以提高其监视能力。