обтюрувальне кільце
base junction; rotary collector ring (box); rotary base junction (of a tank); rotary connection; slip ring; traverse rotary base junction
life ring (ring buoy)
spot check (spot- check)
gas check
gas check band
gas check seat
gas-check pad
gas gun; (tear) gas launcher
base ring
breech ring (of firearm)
D-ring
gun ring
jet ring
retaining ring
ring
safety-pin ring
stator ring
stiffener ring
X ring
defense ring
power-slip ring
slinger ring
slip ring
slip-ring box
slip-ring terminal
fire extinguishing ring
sprocket ring
tie-down ring
trunnion ring
adjustable ring
adjusting nut ring
adjusting ring