This is the job of the speed controller.

这是工作的速度控制器。

youdao

Also we have a good reputation for inverter controller which controls speed of fan.

我们研制的风扇变频器上也有很好的声誉。

youdao

Also we have a good reputation for inverter controller which controls speed of fan.

我们研制的风扇变频器上也有很好的声誉。

youdao