氧乙炔炬 Traditional form: 氧乙炔炬 Pinyin (reading): yǎngyǐquējù Definitions: an oxyacetylene torch Characters: 氧 - oxygen 乙 - second; 2nd heavenly stem 炔 - acetylene 炬 - torch Traditional characters: 氧 - oxygen 乙 - second; 2nd heavenly stem 炔 - acetylene 炬 - torch