oxy·acet·y·lene /ˌɑksiəˈsɛtḷən, tḷˌin/
(a.)氧乙炔的
oxyacetylene
adj : of or using a mixture of acetylene and oxygen; "an
oxyacetylene torch"; "oxyacetelyne welding"
n : a mixture of oxygen and acetylene; used to create high
temperatures for cutting or welding metals