【化】 intra-annular tautomerism; intranuclear tautomerism
annulus; hem in; link; loop; ring; surround
【计】 ring up; toroid
【化】 ring
【医】 annuli; anulus; band; circle; circulus; cycle; cyclo-; gyro-; loop; orb
ring; verge
inner; inside; within
【医】 end-; endo-; ento-; in-; intra-
【化】 tautomerizm
【医】 dynamic isomerism; tautomerism