【医】 cyclobarbital; phanodorm
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
barbitone
【化】 barbital; diethylbarbituric acid; malonurea
【医】 barbital; barbitone; diethyl malonyl usea; diethylbarbituric acid
diethylmalonylurea; malonal