...流焊接技术；直流焊接[gap=607]ouble muscle parallel winding; Three-phase silicon rectifier welding technology; DC welding ...
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AC-dc welding machine 交直流两用焊机
DC welding machine 直流电焊机
dc welding generator 直流电焊发电机
DC arc welding machine 直流弧焊机
dc arc welding 直羚弧焊 ; 直流电弧焊
DC arc welding power source 直流弧焊电源
DC arc welding alternator 直流弧焊发电机
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