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在研究一些其他题材的文件时,我意外地在诗歌《青年提督瑞尔》(“Jü ngeren Titurel”)中,发现了关于德国一块柱石具有放大功能说法的一个早期证明。在这个问题上,还有以下未在材料中说明的一些
In the study of some other subject matter documents, I unexpectedly found in the poem “Jüngeren Tietl” an early proof of the magnification of a German pillar. On this issue, there are some of the following are not described in the material