дугове зварювання
butt welding
upset welding joint
welding seams / welds
inert gas welding
laser beam welding
resistance welding
welding
spot welding
fusion welding
gas welding
welding seams
spot-welding
thermal arc engine / arcjet
arc light
alternative arc of fire
windage arc
wind-gauge arc
arc jet engine
electric arc
crescent-shaped circular arc aerofoil section
circular arc aerofoil section
flat-convex circular arc aerofoil section
arc-shaped aerofoil section
zinc-xenon arc lamp
elevating arc
elevating arc clamp
minute of angle (MOA) / arcminute, minute of arc
arc bridge
arc clinometer
arc of elevation
arc of fire
arc of training