单词 | Haanel depth rule |
释义 | Haanel depth rule [`hän·ǝl `depth ´rül] GEOPHYSICS A rule for estimating the depth of a magnetic body, provided the body may be considered magnetically equivalent to a single pole; the depth of the pole is then equal to the horizontal distance from the point of maximum vertical magnetic intensity to the points where the intensity is one-third of the maximum value. |
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