- three-fold axis
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• ось (симметрии) третьего порядка• тройная ось
Англо-русский словарь терминов металлургии и сварки. 2011.
three-fold axis
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Fold (geology) — For other uses, see Fold (disambiguation). Very tight folds. Formation near Moruya, New South Wales, Australia … Wikipedia
Axis system — In music the axis system, proposed by Ernő Lendvai (1971, p.1 16) in his analysis of the use of tonality in the music of Béla Bartók, is an assignment of harmonic function to all twelve pitch classes in relation to an assigned tonic, determined… … Wikipedia
Point groups in three dimensions — In geometry, a point group in three dimensions is an isometry group in three dimensions that leaves the origin fixed, or correspondingly, an isometry group of a sphere. It is a subgroup of the orthogonal group O(3), the group of all isometries… … Wikipedia
Screw axis — The screw axis (helical axis or twist axis) of an object is a parameter for describing simultaneous rotation and translation components of that object.The axis is a directed line in space, along which a translation may occur, and about which… … Wikipedia
Dihedral symmetry in three dimensions — This article deals with three infinite sequences of point groups in three dimensions which have a symmetry group that as abstract group is a dihedral group Dihn ( n ≥ 2 ). See also point groups in two dimensions. Chiral: Dn (22n) of… … Wikipedia
Foucault + fold — by Tom Conley The most terse and telling formulation of the fold is found in Foldings, or the Inside of Thought (Subjectivation) , the last chapter of Deleuze s Foucault that examines Foucault s three volume study of the history of sexuality … The Deleuze dictionary
Foucault + fold — by Tom Conley The most terse and telling formulation of the fold is found in Foldings, or the Inside of Thought (Subjectivation) , the last chapter of Deleuze s Foucault that examines Foucault s three volume study of the history of sexuality … The Deleuze dictionary
Island Three — For fictional structures for living in space, see Space stations and habitats in popular culture. Artist s depiction of a pair of O Neill cylinders. The O Neill cylinder (also called an Island Three habitat) is a space settlement design proposed… … Wikipedia
Compound of three cubes — Type Uniform compound Index UC8 Convex hull Nonuniform truncated octahedron Polyhedra 3 cubes … Wikipedia
carbonate mineral — Any member of a family of minerals that contains the carbonate ion, CO32 , as the basic structural unit. The carbonates are among the most widely distributed minerals in the earth s crust; the most common are calcite, dolomite, and aragonite.… … Universalium
Rotational symmetry — Generally speaking, an object with rotational symmetry is an object that looks the same after a certain amount of rotation. An object may have more than one rotational symmetry; for instance, if reflections or turning it over are not counted, the … Wikipedia
