130 130 B GB6109.7-90 IEC317-34 B Polyester enamelled round copper wire ,class 130 ,...temperature of 130 as required for class B insulation...是什么意思_130 130 B GB6109.7-90 IEC317-34 B Polyester enamelled round copper wire ,class 130 ,...temperature of 130 as required for class B insulation...在线翻译_英语_读音_用法_例句