According to the model of low Angle bearing, a new direct signal DOA estimation algorithm is proposed based on fourth-order cumulant.
基于低空测角模型，提出了一种基于四阶累积量的直达波方位估计算法。
A pitch controller rotates each blade around a bearing, setting it to the best angle for the wind speed.
同时间距控制装置会根据风速旋转安装在轴承上的风叶，保持在最佳角度。
TAPER: any surface of any bearing part that is not the correct Angle or not to print.
锥度：任何轴承部件的表面角度不正确或者不符合图纸要求。
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