An instrument for taking measurements and describing circles, consisting (in its simplest form) of two straight and equal legs connected at one end…
| 单词 | θ191085 |
| 释义 | society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments > for circles (7) compassa1387 An instrument for taking measurements and describing circles, consisting (in its simplest form) of two straight and equal legs connected at one end… shank1587 transferred. Each of the ‘legs’ of a pair of compasses. Also each of the ‘legs’ of a triangle. Obsolete. beam-compass1785 an instrument consisting of a wooden or brass beam with sliding sockets, for drawing larger circles than an ordinary pair of compasses can describe. bow-compass1796 A pair of compasses with the legs jointed so that the points can be bent inwards; also applied to any compasses made for drawing small circles… bow-pen1869 pencil arm1884 the arm of a device, esp. a pair of compasses, that holds a pencil for marking, recording measurements, etc. spring bow1998 A compass in which the legs are joined by a flexible bow-shaped bar or plate rather than a hinge. Cf. bow-compass, n. 1. More fully spring bow div… |
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