机译:全位置自动管道衬焊机的研究
Research Institute of Engineering Technology of CNPC,Tianjin 300451,China;
Research Institute of Engineering Technology of CNPC,Tianjin 300451,China;
Research Institute of Engineering Technology of CNPC,Tianjin 300451,China;
Research Institute of Engineering Technology of CNPC,Tianjin 300451,China;
Research Institute of Engineering Technology of CNPC,Tianjin 300451,China;
Research Institute of Engineering Technology of CNPC,Tianjin 300451,China;
pipeline; all position; backing weld; metal transfer; sensor;