单词 | atmospheric electric field |
释义 | atmospheric electric field [¦at·mǝ¦sfir·ik i¦lek·trik `fēld] GEOPHYSICS The atmosphere's electric field strength in volts per meter at any specified point in time and space; near the earth's surface, in fair-weather areas, a typical datum is about 100 and the field is directed vertically in such a way as to drive positive charges downward. |
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