Annulus
volume
British pronunciation/ɐnˈuːluːz/
American pronunciation/ɐnˈuːluːz/
annuli

تعریف و معنای "annulus"

Annulus
01

حلقه, یقه قارچ

(Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar
02

طوق (ریاضیات), فاصله بین دو دایره متحدالمرکز

a mathematical shape formed by the region between two concentric circles in a plane
Wiki

annulus

n
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