Nitrous oxide, as the oxidizing gas of atomic absorption spectrum, is also used in flame atomic analysis to meet the needs of production and scientific research. After nitrous oxide enters the engine, it is decomposed into nitrogen and oxygen by heating, which improves the combustion rate and speed of the engine. The decomposed oxygen has the functions of supporting combustion and accelerating fuel combustion. At present, it is mainly used in the medical and health industry and the electronic industry material manufacturing industry.