逆调压
contrary regulation of voltage
Inverse regulation voltage
PWM调压调速
PWM variable voltage control
低压调压阀
low pressure regulating pressure valve
Low-pressure Regulating valve
调压调光技术
voltage and light adjustment
voltage regulation and light regulation
调压调频
frequency modulatoin and voltage regulation
调压调速
variable voltage control
regulate pressure and speed
speed and voltage regulation
adjustable-voltage and adjustable-speed
variable voltage speed regulation
定子调压调速
stator phase-angle controlling variable speed
stator variable voltage variable speed
独立调压调频
independent frequency modulation and voltage regul
负载比[电压]调压器
load-ratio control transformer
晶闸管调压调速
voltage and speed governing by transistor
晶闸管定子调压调速
regulation of voltage and speed with thyristor
可控硅调压调速
frequency conversion velocity modulation
稳压调压
Voltage adjustment and stabilization
自控频率调压调速
frequency self-controlled voltage-variable speed-variable system