“precision approach radar system”的概念、定义、翻译、参考文献-科学参考

单词	precision approach radar system
释义	precision approach radar system Encyclopedia 工学复合无线电导航释 precision approach radar system精密进场雷达系统采用机场监视雷达和精密进场雷达对欲着陆飞机进行探测，由地面领航人员依据雷达提供的角度、距离、位置指示信息，通过地空通信设备指引飞行员操控飞机进场着陆的无线电导航系统。
随便看	principal root of unity principal scale principals' cultural leadership principals' curriculum leadership principal section principal section of crystal principal series principal series representations principal set principal sheet principal solution principal space principal spectrum principal sphere principal sphere of curvature principal square root principals' research leadership principal state model principal state of polarization principal's teaching leadership principal strain principal subgroup principal subgroup series principal submatrix principal submodule

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