短語(yǔ)詞組短語(yǔ)hydrogen ion welding 氫離子焊hydrogen -welding 氫焊atomic hydrogen arc welding 氫原子電弧熔接;原子氫焊hydrogen atomic welding 原子氫焊接atomic -hydrogen arc welding 原子氫焊atomic hydrogen -welding electrode 原子氫焊電極atomic hydrogen welding electrode 原子氫焊電極hydrogen welding electrode 低氫型電焊條atomic hydrogen welding apparatus 原子氫焊接機(jī);原子氫焊機(jī) 返回 hydrogen welding