Family of chemical elements also called inert, as they are weakly reactant
noncombustible = made of material that does not burn if exposed to fire
inflating = filling something with air or the other gas
coolant = a liquid or gas that is used to remove heat from something
incandescent lamp = light bulb = a source of electric light that works by incandescence(=the emission of light caused by heating a suitable material to a high temperature)
discharge lamp = a tube of glass, quartz or other suitable material, containing a gas and, in most cases, a metal vapour. The passage of an electric current through this gas/vapour produces light or ultraviolet radiation.
welding protective gas = see here MIG and TIG welding
See also
Chemical Elements | Part 1
Chemical Elements | Part 2
Chemical Elements | Part 3
Chemical Elements | Part 4
Chemical Elements | Part 5
