他们跟随那个官员走过主街，进入到一条侧道。

They followed the officer back down the boulevard and down a side street.

youdao

为直流侧有源电力滤波器主电路的设计提供了理论依据。

Which gives the theory basis to design DC side APF.

youdao

为直流侧有源电力滤波器主电路的设计提供了理论依据。

Which gives the theory basis to design DC side APF.

youdao