triangulation pillar
triangulation pillar · triangulation pillars
A concrete pillar used by the Ordnance Survey as a point for taking theodolite…A concrete pillar used by the Ordnance Survey as a point for taking theodolite measurements, used in determining the exact shape of the country in a mid-20th-century retriangulation project.
Значення
значень: 1(Британія)A concrete pillar used by the Ordnance Survey as a point for taking theodolite measurements, used in determining the exact shape of the country in a mid-20th-century retriangulation project.
Форми
множина: triangulation pillars| Однина | triangulation pillar |
|---|---|
| Множина | triangulation pillars |
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