back step method

同义词释义

1)back step method,逐步退焊法2)back step welding,逐步退焊法3)back-step procedure,逐步退焊法4)step back method,逐步退焊法5)backstep welding,逐步退焊法6)backstepping,逐步退焊法7)Gradual,逐步8)step by step,逐步9)successive steps,逐步10)step wise,逐步