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无线电罗盘系统
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无线电罗盘系统
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无线电振幅导航
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radio compass system
无线电罗盘系统
利用无线电天线的方向性,由运载体上的定向仪根据接收信号大小自动测定地面信标台发射的无线电来波方向,以获得运载体方位的无线电振幅测向系统。
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sports land per capita
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Sports News Branch, China Sport Science Society
sports newspapers and and magazines in China
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