Welders电焊工人weldv.焊接；使结合n.焊接；焊缝welded liquefied petroleum gas cylinder焊接式液化石油气瓶welding-up composite straighting roll堆焊复合矫直辊Welding science and welding engineering论焊接科学与工程Weld principle and production technique焊接原理及工艺Welding procedure of wind-power tower风塔焊接工艺welding engineering of National Stadium奥运（鸟巢）工程welded I-section steel bracing member焊接工字钢支撑welding/modern duplex stainless steel焊接／双相不锈钢welding with trailing rotating extrusion随焊旋转挤压Welding surface insulation resistance of焊后表面绝缘电阻