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微波着陆系统
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微波着陆系统
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无线电时间导航
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microwave landing system; MLS
微波着陆系统
工作于微波频段,采用时间式无线电导航测角和询问/回答式双程脉冲测距原理,为飞机提供相对于跑道的方位、仰角、距离信息,以飞机上导出引导数据形式实现飞机主动着陆的无线电导航系统。
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algebraic root
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algebraic spline curve
algebraic spline surface
algebraic stability criterion
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algebraic surface of general type
algebraic surface of order one
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