单词 | earth-current storm |
释义 | earth-current storm [`ǝrth ´kǝ·rǝnt ´stȯrm] GEOPHYSICS Irregular fluctuations in an earth current in the earth's crust, often associated with electric field strengths as large as several volts per kilometer, and superimposed on the normal diurnal variation of the earth currents. |
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