electronic reconnaissance

例句：

1. 1.The government uses electronic reconnaissance to monitor the movements of terrorists.
   政府使用电子侦察来监控恐怖分子的动向。
2. 2.The military has been conducting electronic reconnaissance missions in the area.
   军队一直在该地区进行电子侦察任务。
3. 3. The spy agency is using electronic reconnaissance to gather intelligence on potential threats.
   这个间谍机构正在使用电子侦察来收集潜在的威胁情报。