An upward slope or direction, esp. (Mining) of strata, coal seams, veins of ore, etc.
| 单词 | θ6279 |
| 释义 | the world > the earth > minerals > mineral deposits > features of stratum or vein > [noun] > upward slope (2) rise1672 An upward slope or direction, esp. (Mining) of strata, coal seams, veins of ore, etc. pitch1719 Mining and Geology. The inclination of a vein of ore or seam of coal from the horizontal; the dip or rise of a stratum, bed, etc.; spec. (a) the… |
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