每个相角不论是正的还是负的，都是相对于水平轴来说的。
Each phase angle , whether positive or negative, is referenced to the horizontal.
利用单斜丝热线旋转进行水平轴风力机模型的尾迹流场测量。
The panel method was used to predict the wake flow field of propeller.
利用单斜丝热线旋转进行水平轴风力机模型的尾迹流场测量。
The panel method was used to predict the wake flow field of propeller.
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