I.around [brit. angl. əˈraʊnd, am. angl. əˈraʊnd]PRISL.Around often appears as the second element of certain verb structures (come around, look around, turn around etc.): for translations, consult the appropriate verb entry (come, look, turn etc.). - Go around and get around generate many idiomatic expressions: for translations see the entries go, and get.
Nine sets of doublet microtubules (a specialized structure consisting of two linked microtubules) form a ring around a central pair of single microtubules.
What they do give you is a very stable surface free of any kind of rocking balanced on 3 points, so any vibration that does couple up doesn't ring around.