晶闸管定子调压调速
regulation of voltage and speed with thyristor
定子调压
stator pressure regulation
stator voltage controlling
PWM调压调速
PWM variable voltage control
调压调速
variable voltage control
regulate pressure and speed
speed and voltage regulation
adjustable-voltage and adjustable-speed
variable voltage speed regulation
晶闸管调压调速
voltage and speed governing by transistor
可控硅调压调速
frequency conversion velocity modulation
自控频率调压调速
frequency self-controlled voltage-variable speed-variable system
安全阀调定压力
safety valve set pressure
安全阀调定压力的调整
relief valve setting adjustment
泵负载卸压调定
pump charge relief setting
调速器气压调定
governor air pressure setting