| drift |
A horizontal mine working, or to advance a mine working forward.
Ãâó: www.nbmg.unr.edu/comstockscience/vocab1.shtml
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| drift |
Usually refers to instrument drift, the presumed secular change in gravity caused by changes in the instrument sensor and other internal components. It is usually modeled as an exponential, linear or quadratic function of time.
Ãâó: www.eas.slu.edu/GGP/ggpgloss.html
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