例句與造句

1. Each measurement made by theodolite during the retriangulation was repeated no fewer than 32 times.
2. The grid is based on the "'OSGB36 "'retriangulation of 1936 1962.
3. The absence of a trig point suggests that Dent was not used in the Retriangulation of Great Britain.
4. The Grid is known technically as OSGB36 ( Ordnance Survey Great Britain 1936 ) and was introduced after the 1936 53 retriangulation.
5. This models the detailed distortions in the 1936 1962 retriangulation, and achieves backwards compatibility in grid coordinates to sub-metre accuracy.
6. It's difficult to find retriangulation in a sentence. 用retriangulation造句挺難的
7. The process of placing trig points on top of prominent hills and mountains began in 1935 to assist in the accurate retriangulation of Great Britain.
8. The results of the retriangulation were used to create the British national grid reference system which became the basis of the Ordnance Survey's new maps.
9. In 1935 he started the retriangulation of Great Britain, an immense task which involved erecting concrete triangulation pillars ( trig points ) on prominent ( often inaccessible ) hilltops throughout Britain.
10. These are concrete pillars, about 4 feet tall, which were used by the Ordnance Survey in order to determine the exact shape of the country in a project known as the retriangulation of Great Britain, which was carried out from 1936 to 1962.
11. By the time the retriangulation was completed, electronic distance-measuring devices had come into use which could have greatly reduced the overall error ( it now seems Great Britain is 20 + metres shorter than OSGB36 implies ) but starting over from scratch was out of the question.
12. CMG CBE ( 17 June 1898  12 November 1968 ) was the head of the Trigonometrical and Levelling Division of the Ordnance Survey responsible for the 26-year-long retriangulation of Great Britain ( 1936 1962 ) and was the first Director General of the Directorate of Overseas Surveys ( 1946 1985 ).
13. The retriangulation generated a co-ordinate system which is still used today, and which allows plotting of the entire country with a relative accuracy from over the scale of the whole country, down to less than over distances of a few tens of kilometres ( the more local the area covered by the map, the smaller the possible distortions ).
14. Today, large-scale triangulation networks for positioning have largely been superseded by the global navigation satellite systems established since the 1980s, but many of the control points for the earlier surveys still survive as valued historical features in the landscape, such as the concrete triangulation pillars set up for retriangulation of Great Britain ( 1936 1962 ), or the triangulation points set up for the Struve Geodetic Arc ( 1816 1855 ), now scheduled as a UNESCO World Heritage Site.