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annulus    
n. 环,轮,体环

环,轮,体环

annulus
n 1: a toroidal shape; "a ring of ships in the harbor"; "a halo
of smoke" [synonym: {ring}, {halo}, {annulus}, {doughnut},
{anchor ring}]
2: (Fungi) a remnant of the partial veil that in mature
mushrooms surrounds the stem like a collar [synonym: {annulus},
{skirt}]


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  • Annulus - Definition, Formula, Examples - Cuemath
    An annulus is a two-dimensional flat figure shaped in a circular form which is constructed by two concentric circles The region or the area formed in between these two concentric circles is called the annulus
  • Annulus (mathematics) - Wikipedia
    In mathematics, an annulus (pl : annuli or annuluses) is the region between two concentric circles Informally, it is shaped like a ring or a hardware washer The word "annulus" is borrowed from the Latin word anulus or annulus meaning 'little ring'
  • Annulus: Shape, Definition, Formulas - GeeksforGeeks
    An annulus is a flat, plane figure formed between two concentric circles, creating a ring-like shape The area of an annulus refers to the region enclosed between these two concentric circles, which lie in the same plane
  • Annulus - Math is Fun
    An annulus is a flat shape like a ring Its edges are two circles that have the same center The face of a metal washer is an annulus Something shaped like an annulus is said to be annular Because it is a circle with a circular hole, you can calculate the area by subtracting the area of the "hole" from the big circle's area:
  • Annulus - Definition, Formula, Examples - Math Monks
    An annulus is a flat, ring-shaped structure made out of 2 circles Another way of looking at it is a circular ring with a circular hole in it Mathematically, it is the area between the 2 circles having a common center (concentric circles) lying in the same plane
  • What is an Annulus in Geometry? - Interactive Mathematics
    In mathematics, an annulus is defined as the area between two circles that have the same center but different radii The area of an annulus can be calculated by subtracting the area of the smaller circle from the area of the larger circle
  • Annulus - Math word definition - Math Open Reference
    An annulus is a flat ring shaped object, much like the throw-ring shown on the right One way to think of it is a circular disk with a circular hole in it The outer and inner circles that define the ring are concentric (share a common center point)
  • Annulus - Math. net
    An annulus (meaning little ring in Latin) is a ring-shaped figure between two concentric circles Below are two examples Think of an annulus as a circle with a concentric hole in it An annulus is something you've probably seen in your everyday life
  • Understanding Annulus in Geometry – A Comprehensive Guide
    In geometry, the annulus stands as a captivating and intriguing geometric shape Defined as the region between two concentric circles, the annulus possesses a unique elegance that makes it visually appealing and mathematically significant
  • Annulus (mathematics) - Wikiwand
    In mathematics, an annulus (pl : annuli or annuluses) is the region between two concentric circles Informally, it is shaped like a ring or a hardware washer The word "annulus" is borrowed from the Latin word anulus or annulus meaning 'little ring'





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