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There is sometimes no scanning line on radar screen.
雷达屏幕上有时没有扫描线。
youdao
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The direction of Radar Target is got by antenna beam scanning.
雷达测定目标的方向是利用天线波束的扫描来实现的。
youdao
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The direction of Radar Target is got by antenna beam scanning.
雷达测定目标的方向是利用天线波束的扫描来实现的。
youdao