acetylene welding set
[化] 乙炔焊装置; 乙炔气焊装置
air-acetylene welding
[机] 空气乙炔熔
oxy-acetylene welding
[化] 气焊; 氧-乙炔焊
oxyacetylene welding
[机] 氧乙炔熔接, 气焊
oxyacetylene welding outfit
[化] 氧炔气焊机; 氧乙炔气焊机
