tungsten arc tungsten arc lamp tungsten brass tungsten bronze tungsten carbide tungsten-carbide drilling tungsten cathode tungsten filament tungsten halogen lamp tungsten inert-gas welding tungsten point file tungsten sensitivity tungsten steel tungstic tungstite tuning tuning board tuning capacitance tuning capacitor tuning coil |
tungsten arc електрическа дъга между нажежени волфрамови елекриди Търсената дума е намерена |