oxyacetylene
noun [ U ] chemistry specialized uk/ˌɒk.si.əˈset.əl.iːn/ us/ˌɑːk.si.əˈset̬.əl.iːn/
氧乙炔
a mixture of oxygen and acetylene (= a gas) that produces a hot bright flame, and that can be used for cutting metal
an oxyacetylene lamp/torch 氧乙炔灯／喷灯