This article needs additional citations for
verification. (February 2017) |
Mine surveying is the practice of determining the relative positions of points on or beneath the surface of the earth by direct or indirect measurements of distance, direction & elevation. [1]
This article needs additional citations for
verification. (February 2017) |
Mine surveying is the practice of determining the relative positions of points on or beneath the surface of the earth by direct or indirect measurements of distance, direction & elevation. [1]