U.S. A mark placed at the angle of a tract which has been surveyed. Cf. corner-tree n. at compounds 2.
| 单词 | θ7401 |
| 释义 | the world > the earth > earth sciences > geography > map-making > surveying > [noun] > surveyor's marks (3) corner1699 U.S. A mark placed at the angle of a tract which has been surveyed. Cf. corner-tree n. at compounds 2. benchmark1826 A fixed point (esp. a cut or mark in a wall, building, etc.), used by a surveyor as a reference in measuring elevations. turning-point1891 Surveying. A subsidiary bench-mark whose height above datum is determined during the operation of finding, by differential levelling, the… |
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