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torus    
n. 花托,花床,圆环面

花托,花床,圆环面

torus
n 1: a ring-shaped surface generated by rotating a circle around
an axis that does not intersect the circle [synonym: {torus},
{toroid}]
2: commonly the lowest molding at the base of a column [synonym:
{torus}, {tore}]

Torus \To"rus\ (t[=o]"r[u^]s), n.; pl. {Tori} (t[=o]"r[imac]).
[L., a round, swelling, or bulging place, an elevation. Cf.
3d {Tore}.]
[1913 Webster]
1. (Arch.) A large molding used in the bases of columns. Its
profile is semicircular. See Illust. of {Molding.}
--Brande & C.
[1913 Webster]

2. (Zool.) One of the ventral parapodia of tubicolous
annelids. It usually has the form of an oblong thickening
or elevation of the integument with rows of uncini or
hooks along the center. See Illust. under {Tubicolae}.
[1913 Webster]

3. (Bot.) The receptacle, or part of the flower on which the
carpels stand.
[1913 Webster]

4. (Geom.)
(a) The surface described by the circumference of a circle
revolving about a straight line in its own plane.
(b) The solid inclosed by such a surface; -- sometimes
called an {anchor ring}.

Syn: Syn. --3d Tore[2].
[1913 Webster]


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  • Torus - Wikipedia
    In geometry, a torus (pl : tori or toruses) is a surface of revolution generated by revolving a circle in three-dimensional space one full revolution about an axis that is coplanar with the circle The main types of toruses include ring toruses, horn toruses, and spindle toruses
  • Torus -- from Wolfram MathWorld
    An (ordinary) torus is a surface having genus one, and therefore possessing a single "hole" (left figure) The single-holed "ring" torus is known in older literature as an "anchor ring "
  • Torus - Math is Fun
    A torus is a fascinating 3D shape that looks like a donut or swim ring It is created by revolving a smaller circle around a larger one
  • Torus - Simple English Wikipedia, the free encyclopedia
    A torus (plural: tori or toruses) is a tube shape that looks like a doughnut or an inner tube In geometry, a torus is made by rotating a circle in three dimensional space To make a torus, the circle is rotated around a line (called the axis of rotation) that is in the same plane as the circle
  • Torus Shape – Definition, Examples, and Diagrams - Math Monks
    A torus is a unique three-dimensional shape that looks like a donut Swimming tubes and car or bike tubes are typical examples of the shape of a torus The diagram below shows the shape of a torus
  • Torus - Michigan State University
    A torus is a surface having Genus 1, and therefore possessing a single ``Hole '' The usual torus in 3-D space is shaped like a donut, but the concept of the torus is extremely useful in higher dimensional space as well One of the more common uses of -D tori is in Dynamical Systems
  • Torus - Encyclopedia of Mathematics
    A torus is a special case of a surface of revolution and of a canal surface From the topological point of view, a torus is the product of two circles, and therefore a torus is a two-dimensional closed manifold of genus one
  • TOPOLOGY, GEOMETRY, AND DYNAMICAL SYSTEM OF TORUS
    We begin by examining the fun-damental group of the torus, providing a foundation for understanding its topological properties The concept of the flat torus is then introduced We also solve the Gauss Circle Problem, uncovering hidden geometric structures within the torus
  • TORUS | definition in the Cambridge English Dictionary
    TORUS meaning: 1 a shape that is a circular tube that is hollow inside : 2 a rounded part at the base of a… Learn more
  • The Torus Explained - Monatomic Orme
    The torus (plural tori) represents the perfect balance of one’s dynamic energy flow It’s a geometric shape at the root of all forms, from the smallest atom to the galaxy within which we find ourselves in the universe – and possibly beyond!





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