短語詞組短語submerged arc automatic welder 埋弧自動(dòng)焊機(jī)submerged arc stud welder 埋弧螺柱焊機(jī)arc fusing welder 電弧熔焊機(jī)arc spot welder 電弧點(diǎn)焊機(jī)arc -welder lung 電弧焊工肺automatic arc -welder 自動(dòng)弧焊機(jī)arc ot welder 電弧點(diǎn)焊機(jī)submerged arc guaranteed welder 埋弧自動(dòng)焊機(jī)AC arc -welder 交流弧焊機(jī) 返回 arc welder