【化】 mepitiostane
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
contract; crinkle; draw back; shrink; withdraw
【化】 epithio-
【化】 androstane