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- 他们能够用雷达测定快艇的方位。
They were able to position the yacht by means of radar.
- 敌舰的影像已显现在雷达（屏幕）上。
Enemy ships were detected on the radar (screen).
- 他们在雷达屏上看到了那艘游艇。
They picked up the yacht on their radar screen.
- 雷达密切监视天空，搜索敌机。
The radar scanned the sky for enemy planes.
- 了望塔通过雷达追踪这架飞机的飞行。
The watchtower followed the aircraft by radar.
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