“sky wave propagation for low frequency”的概念、定义、翻译、参考文献-科学参考

单词	sky wave propagation for low frequency
释义	sky wave propagation for low frequency Encyclopedia 工学电离层电波传播释 sky wave propagation for low frequency低频天波传播地面发射的频率为30～300千赫的无线电波，经电离层反射再回到地面的传播方式。
随便看	apparent antivertex apparent area apparent association apparent binary apparent bolometric magnitude apparent brightness apparent candle power apparent charge apparent chargeability apparent competition apparent contour apparent coordinate apparent death apparent declination apparent depression of the horizon apparent diameter apparent digestibility of nutrients apparent dip apparent direction apparent discharge apparent distance apparent diurnal motion apparent diurnal path apparent electrophoretic mobility apparent equatorial coordinate

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