yǎng yǐ quē hàn jù
oxyacetylene torch
氧
yǎng
oxygen (chemistry)
乙
yǐ
second of the ten Heavenly Stems 十天干[shi2 tian1 gan1]
炔
quē
alkyne
焊
hàn
variant of 焊[han4]
炬
jù
torch
Review