单词 | θ7414 |
释义 | the world > the earth > earth sciences > geography > map-making > surveying > [noun] > surveying instruments (73) Subcategories:— for finding observer's position (3) — for the rapid location of points on a survey (2) — for determining directions (1) — for taking bearings (2) — for laying off lines at right angles (2) — for measuring distances (2) — for levelling (2) — for measuring angles (14) — for triangulation (1) — for measuring inclination or gradient (5) — for measuring and drawing distant areas (1) — staff or pole (9) — chain (7) — rule (3) — instrument used to support a plumb-line (1) — other surveying instruments (9) — part of a surveying instrument (9) |
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