permanent current英语标准发音:permanent current英式发音:美式发音:翻译中文恒流permanent current - 基本释义[词典1]长期流permanent current - WEB词典permanent current持恒电流持恒电流permanent-capacitor current电阻焊的连续电流permanent current power恒流源 参考资料: 1.百度翻译:permanent current2.有道词典:permanent current3.爱词霸:permanent current