短语词组短语direct arc plasma torch [电]直接弧等离子枪indirect arc plasma torch [炉窑]间接弧等离子枪superimposed arc plasma torch 叠加弧等离子枪transferred arc plasma torch [电]转移弧等离子枪non -transferred arc plasma torch [电子]非转移弧等离子枪 返回 arc plasma torch