reconnaissance and security line

例句：

1. 1.The military reconnaissance team is conducting a routine patrol in the area.
   军事侦察队正在该地区进行常规巡逻。
2. 2. The government has established a security line to prevent any further attacks.
   政府已设立安全线以防止进一步的攻击。
3. 3. The spy network was able to intercept and capture the enemy's reconnaissance satellite.
   间谍网络成功截获并捕获了敌方的侦察卫星。