氧乙炔焊炬 Traditional form: 氧乙炔焊炬 Pinyin (reading): yǎngyǐquēhànjù Definitions: oxyacetylene torch Characters: 氧 - oxygen 乙 - second; 2nd heavenly stem 炔 - acetylene 焊 - to solder, to weld 炬 - torch Traditional characters: 氧 - oxygen 乙 - second; 2nd heavenly stem 炔 - acetylene 焊 - to solder, to weld 炬 - torch