Terms for subject Electric machinery containing variable-frequency

English	Chinese
AC-AC variable frequency	交交变频
AC-AC variable frequency drive	交交变频传动装置
frequency-variable resistor	随频率变化电阻器
natural frequency of network variable	网络变量的自然频率
three-phase variable-frequency motor	三相变频电动机
variable frequency constant voltage	变压恒压
variable frequency machine	可变频率电机
variable frequency variable voltage	变频变压