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1. The impulse radar system was used to detect the enemy's movements.
脉冲雷达系统被用来探测敌人的动向。
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2. The impulse radar detected a sudden change in the air traffic.
脉冲雷达检测到了空中交通的突然变化。
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3. The military used impulse radar to track enemy aircraft in the sky.
军方使用脉冲雷达来追踪天空中的敌机。