锅筒纵缝焊接  Longitudiual seam welding on drum

纵缝焊机  longitudinal seam welding machine; longitudinal seam welder

纵缝焊接操作机  welding manipulator for longitudinal seam

纵焊缝未融合  Non-fusion in Longitudinal Weld Seam

总纵向焊缝  longitudinal weld

纵/环缝焊接  Girth lap

纵向电阻缝焊机  longitudinal resistance seam welder

纵向缝焊  longitudinalwelding

纵向焊缝  longitudinal seam; longitudinal weld; longitudinal welding seam

纵向焊缝余高  longitudinal weld reinforcement

底焊焊缝  back weld; backing weld

点焊缝焊  Spot and Seam Welding

堆焊焊缝  bead-on plate weld; surfacing weld

焊缝焊后热处理  post weld heat treatment

弧焊焊缝  arc weld

环缝焊∥焊接辅助装置  girth welding∥welding auxiliary device

环焊缝焊接接头力学性能试验  mechanical properties test of circular welded joints

加焊焊缝  build up a joint

角焊缝焊脚尺寸  leg size of fillet weld