【医】 Landolt ring
bright; loud and clear
【医】 pleonotia; polyotia
family name; surname
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