在2月25日清晨的早些时候，军用雷达探测到了距海岸线120英里的一架不明飞行物正在接近海岸线。
By the early hours of the following morning, on Feb 25, military radar detected an unidentified flying object 120 miles offshore approaching the coastline.
正如您可以从雷达数据中看到的那样，看上去在雷达天线的30英里半径内存在弱降水。
As you can see from the radar data, there appears to be light precipitation within a 30-mile radius of the radar antenna.
A-12几乎无法用雷达探测到，飞行速度可达2 200英里每小时（3 540公里每小时），以这种速度飞行，该飞机可在70分钟内横穿美国大陆。
Nearly undetectable to radar, the A-12 could fly at 2, 200 miles an hour (3, 540 kilometers an hour)—fast enough to cross the continental U.S. in 70 minutes.
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