газове зварювання
inert gas welding
butt welding
upset welding joint
welding seams / welds
laser beam welding
resistance welding
welding
spot welding
arc welding
fusion welding
welding seams
spot-welding
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
gas defense
gas density
gas mask
gas mask test
gas mechanism
gas piston
gas plug
gas precautions
gas terrorism
gas turbine engine