It can be used as a design index for vector rotational operation, where the rotational Angle is known in advance.

它可以用来作为矢量的旋转操作的旋转角度是预先已知的，其中的设计指数为。

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It can be used as a design index for vector rotational operation, where the rotational Angle is known in advance.

它可以用来作为矢量的旋转操作的旋转角度是预先已知的，其中的设计指数为。

youdao