single operator arc welding machine 单站弧焊机 ; 单人弧焊机

single operator arc welding set 单人电焊机

multi-operator arc welding set 多站弧焊机

multiple operator arc welding machine 复式弧焊机

single operator arc welding generator 单站电焊发动机

gas-shielded arc welding machine operator 气护弧焊机操作员 ; 气体保护电弧焊接操作机 ; 气体保护弧焊机操作员

submerged arc welding machine operator 埋弧焊机操作员 ; 埋弧焊焊接操作员

single operator arc welding transformator 单站电弧焊变压器

single operator arc welding machellone 双站弧焊机