Finally the rectangles' four vertexes coordinate through geometric constraints are solved.

最后利用几何约束求解出矩形模式特征的四个顶点。

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Nine PZT actuators are distributed among four platforms, and in each layer there are three PZT actuators placed on the vertexes of an equilateral triangle.

在四层平行平板间并列分布九个PZT微驱动器，每层的三个驱动器摆放在一个正三角形的三个顶点上。

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