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