变桨距是通过改变风力机叶片桨距角来改变风力机的转速，从而调整发电机输出功率。

Pitch angle control system can change pitch, accordingly regulate the rotational speed and output power by adjusting blade incidence of wind-driven device.

youdao

变桨距是通过改变风力机叶片桨距角来改变风力机的转速，从而调整发电机输出功率。

Pitch angle control system can change pitch, accordingly regulate the rotational speed and output power by adjusting blade incidence of wind-driven device.

youdao