中文说明：电离层和对流层中电波传播的相关问题研究_易欢
English Description：
Research on the related problems of radio wave propagation in ionosphere and troposphere_ Yi Huan
Research on the related problems of radio wave propagation in ionosphere and troposphere_ Yi Huan
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中文说明：电离层和对流层中电波传播的相关问题研究_易欢
English Description：
Research on the related problems of radio wave propagation in ionosphere and troposphere_ Yi Huan电离层和对流层中电波传播的相关问题研究_易欢.caj