mechanical straightedge

mechanical straightedge
машина для проверки ровности поверхности покрытия

Англо-русский словарь по авиационным и ракетным базам. - М.: Военное издательство министерства обороны Союза ССР. . 1962.

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  • Straightedge — A straightedge is a tool with an accurately straight edge used for drawing or cutting straight lines, or checking the straightness of lines. If it has equally spaced markings along its length it is usually called a ruler.True straightness can in… …   Wikipedia

  • mathematics — /math euh mat iks/, n. 1. (used with a sing. v.) the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically. 2. (used with a sing. or pl. v.) mathematical procedures,… …   Universalium

  • Squaring the circle — Squaring the circle: the areas of this square and this circle are equal. In 1882, it was proven that this figure cannot be constructed in a finite number of steps with an idealized compass and straightedge …   Wikipedia

  • geometry — /jee om i tree/, n. 1. the branch of mathematics that deals with the deduction of the properties, measurement, and relationships of points, lines, angles, and figures in space from their defining conditions by means of certain assumed properties… …   Universalium

  • surveying — /seuhr vay ing/, n. 1. the science or scientific method of making surveys of land. 2. the occupation of one who makes land surveys. 3. the act of one who surveys: The surveying required nearly two days. [1425 75; late ME: act of examining… …   Universalium

  • drafting — /draf ting, drahf /, n. See mechanical drawing. [1875 80; DRAFT + ING1] * * * Precise graphical representation of a structure, machine, or its component parts that communicates the intent of a technical design to the fabricator (or the… …   Universalium

  • Micrometer — This article is about the measuring device. For the unit of length, see Micrometre. Outside, inside, and depth micrometers A micrometer (   …   Wikipedia

  • Cissoid of Diocles — construction In geometry, the cissoid of Diocles is a cubic plane curve notable for the property that it can be used to construct two mean proportionals to a given ratio. In particular, it can be used to double a cube. It can be defined as the… …   Wikipedia

  • Tool — For other uses, see Tool (disambiguation). A modern toolbox. A tool is a device that can be used to produce an item or achieve a task, but that is not consumed in the process. Informally the word is also used to describe a procedure or process… …   Wikipedia

  • Caliper — For other uses, see Caliper (disambiguation). A vernier caliper …   Wikipedia

  • Doubling the cube — (also known as the Delian problem) is one of the three most famous geometric problems unsolvable by compass and straightedge construction. It was known to the Egyptians, Greeks, and Indians.[1] To double the cube means to be given a cube of some… …   Wikipedia


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