所述的压电陶瓷圆片、空气用匹配层、灌注层、外壳和屏蔽层均为中心旋转对称结构。

The piezoceramic round disc, the matching layer for air, the perfusion layer, the casing and the shielding layer adopt a central rotational symmetry structure.

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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。

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.

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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。

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.

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