... one waterproof electric torch防水手电筒一只 one radar reflector雷达反射器一个 one daylight signaling mirror日光信号镜一面 ...
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High gain antenna is required in the long distance communications and high resolution radar applications in which reflector antenna is the most widely used one.
在远距离通讯和高分辨率雷达的应用中，要求天线具有高增益，反射面天线是使用最广泛的高增益天线。
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