кільцеві газоущільнювальні канавки
self-sealing rivet
labyrinth sealing breakdown
sealing wax
rifling grooves
rifling grooves configuration
sharp-edged grooves
inclination of the grooves
worn bearing grooves
X-shaped oil grooves
grooves
can-annular burner / combustion chamber
annular double-row ball bearing
annular gear
annular seat
annular single-row ball bearing
annular single-row shielded ball bearing
annular wide roller bearing
annular cascade
annular combustion chamber
annular exhaust nozzle
double annular combustion chamber
annular aerofoil
gas gun; (tear) gas launcher
blister agent/ gas
blood gas
choking agent / gas
combustion gas
gas alarm / warning
gas analysis system
gas and electricity service
gas bleed
gas chamber