The amount of blade twist is called the pitch angle .

叶片扭曲的量被称之螺旋上升角。

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Analyze the influence of main parameters including exp. area ratio, blade number, collective pitch angle, section shape, cyclic pitch angle and rake angle on the performance of VVP.

本文分析了盘面比、叶数、整体螺距角、周期螺距角、纵倾角、叶剖面形状等主要参数的变化对全方向推进器水动力性能的影响。

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

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。

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