An instrument for measuring circular arcs.
单词 | θ117511 |
释义 | the world > relative properties > measurement > measuring instrument > [noun] > for measuring length > for measuring curved lines or arcs (4) cyclometer1815 An instrument for measuring circular arcs. opisometer1854 A hand-held instrument for measuring the length of curved lines, esp. on a map, usually having at its tip a small rotating wheel that is rolled along… traveller1873 A tool used to measure the length of the perimeter of an object (esp. a wheel), consisting of a small graduated wheel with a handle that is drawn… curvometer1892 Any of various instruments used for measuring the length of a curve. |
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