power frequency英语标准发音:power frequency英式发音:美式发音:翻译中文工频power frequency - 基本释义[词典1]工频电源频率功率频率工业频率power frequency - WEB词典power frequency工频电源频率Ultrasonic power and frequency超声波功率与频率power system frequency电网频率 参考资料: 1.百度翻译:power frequency2.有道词典:power frequency3.爱词霸:power frequency