A 3-d memory module (3d-mm) is disclosed, whose storage capacity and external size are better than that of same-period micro-hard-disk (CMD).

本发明提供了一种三维存储模块(3d - MM)，它在存储容量和外部尺寸方面优于同期微硬盘(CMD)。

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A 2-d equivalent circuit models of the longitudinally polarized annulus and circular piezoelectric disk are established, which is coupled in the thickness and radial direction.

提出了一种轴向极化压电圆环和圆片的径厚二维耦合等效电路模型。

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