氧乙炔焊 yǎng yǐ quē hàn 🔊 oxyacetylene welding + Keep this word Meanings yǎng yǐ quē hàn oxyacetylene welding Its characters 氧yǎngoxygen (chemistry)乙yǐsecond of the ten Heavenly Stems…HSK 5炔quēalkyne焊hànto weld; to braze; to solder