短語詞組短語welding electric current 焊接電流welding -current 焊接電流Welding tying current automaticamente 接綬現(xiàn)實(shí)Resistance spot -welding invariable current 電阻點(diǎn)焊恒流控制source of welding current 焊接電源zone of welding current 焊接電流調(diào)節(jié)范圍conventional welding current 約定焊接電流welding current wave 焊接電流波形welding current curve 放電電流波形 返回 welding current