低电压直流电
low voltage and direct current
低压直流电
low voltage direct current
高压直流电
ankle joint instability
high voltage direct current
交直流电
alternating current-direct current
脉动直流电
pulsating direct current
Rectified alternating current
频率-直流电压变换器
frequency-DC voltage converter
内置式永磁无刷直流电动机
inner-buried permanent magenet brushless DC motors