The surveillance radar is unserviceable.

监视雷达不工作.

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Secondary Surveillance Radar the ground picks the data and displays it on the ATC radar screen.

地面的二次监视雷达接受到数据并把数据在空管雷达屏幕上显示出来.

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" I found that unknown surveillance radar signal, a preliminary identified as the " enemy " warning wave! "

我侦察雷达发现不明信号, 初步判明为 “ 敌 ” 警戒雷达波!

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The emergence of the stealth technology puts forward to the surveillance radar a big challenge.

隐身技术的出现对探测雷达提出了严峻的挑战.

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