节电调速器
power-saving speed regulator
交直流调速器
alternating current-direct current
交流变频调速器
AC frequency conversion speed regulator
alternating current frequency convertible governor
AC VVVF inverter
AC frequency change governor
机械-液压调速器
mechanical-hydraulic governor
高压交流变频调速器
high-volt AC VFD(variating frequency device
高压变频调速器
high voltage frequency converter
high voltage inverter
高速调制信号源
high speed modulation signal source