“seasonal variation”的概念、定义、翻译、参考文献-科学参考

单词	seasonal variation
释义	seasonal variation [`sēz·ǝn·ǝl ´ver·ē`ā·shǝn] ^GEOPHYSICS The variation of any parameter of the upper atmosphere with season; for example, the variation of ion densities of different parts of the ionosphere, and the resulting variation in transmission of radio signals over large distances.
随便看	fluxmeter flux of energy flux oil flux oxygen cutting flux path flux pump flux refraction flux unit Fly fly fly ash flyback flyback power supply flyback transformer flyby fly-by-wire system fly cutter fly cutting flying angle flying-aperture scanner flying boat flying bomb flying bridge flying buttress flying clock

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