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1·The structure substituted rectangular prism for common quarter wave, and improved the stability of the optical voltage transformer.

该结构用直角棱镜代替了普通的四分之一波片，提高了光学电压互感器的稳定性。

2·This paper gives a finite prism superposition solution for a rectangular thick plate and thick plate with circular holes on elastic foundation.

本文提出了弹性地基上水泥混凝土厚板和空心厚板的有限棱柱迭加解法。