短語詞組短語balance e transformer 平衡變壓器balance traction transformer 平衡牽引變壓器Core Balance Current Transformer 磁勢平衡電流互感器impedance matching balance traction transformer 阻抗匹配平衡牽引變壓器impedance matching balance tractive transformer 阻抗匹配平衡牽引變壓器multi function balance traction transformer 多功能平衡變壓器multi -function balance traction transformer 多功能平衡變壓器core -balance transformer 磁勢平衡互感器balance -un transformer 平衡 返回 balance transformer