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

单词	geomagnetic variation
释义	geomagnetic variation [¦jē·ō·mag¦ned·ik ver·ē`ā·shǝn] ^GEOPHYSICS Temporal changes in the geomagnetic field, both long-term (secular) and short-term (transient).
随便看	series multiple series-parallel circuit series-parallel control series-parallel firing series-parallel switch wattless component wattless current wattless power wattmeter Watt's curve watt-second Watt's law wave wave aberration wave acoustics wave amplitude wave analyzer wave angle wave antenna wave base wave basin wave-built platform wave-built terrace wave celerity wave clutter

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