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单词 triangulation point
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triangulation point
1. The tracing and measurement of a series or network of triangles in order to survey and map out a territory or region, spec. by measuring the angles and one side of each triangle (cf. trilateration n.). Frequently attributive, as triangulation point (also figurative).
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the world > the earth > earth sciences > geography > map-making > surveying > [noun] > specific methods or processes
dialling1670
traverse1674
boning1718
levelling1812
triangulation1818
resection1855
plane-tabling1867
stepping1888
tacheometry1888
tachymetry1891
trilateration1948
1818 Blackwood's Edinb. Mag. 3 463 The English triangulation, begun by General Roy.
1826 T. Drummond in Philos. Trans. (Royal Soc.) 116 ii. 334 Slieve Snaght, the highest hill of Innishowen,..forms an important point in the triangulation, which connects the North of Ireland with the western islands of Scotland.
1863 A. C. Ramsay Physical Geol. & Geogr. Great Brit. (1878) xxxi. 550 The triangulation of Scotland for the Ordnance Survey.
1864 J. Hunt tr. C. Vogt Lect. on Man Index Triangulation of the skull.
attributive.1923 Geogr. Rev. 13 465 The recent remarking of the Meades Ranch Station calls attention to the unique importance of this triangulation point.1947 A. R. Hinks Maps & Survey (ed. 5) ix. 172 The methods of trigonometrical survey..divide themselves into the following sections: 1. Determination of mean sea level... 9. Transference of the triangulation points to the plane-table sheets.1977 Times Lit. Suppl. 22 Apr. 494/1 Dispassionate yet sensitive, his Lenz..deservedly became the triangulation-point for a whole generation.
extracted from triangulationn.
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