现代物理学奠基人艾伯特·爱因斯坦的一份珍贵手稿日前在荷兰莱顿大学洛仑兹理论物理研究院的档案文件中被发现，这份原稿记录着爱因斯坦于1925年发表的一个重要理论。
The original manuscript of a paper Albert Einstein published in 1925 has been found in the archives of Leiden University's Lorentz Institute for Theoretical Physics, scholars said Saturday.
过去，讲师和教授都是将文件原稿通过培训材料办公室，交给印刷部门进行胶版印。
In the past, instructors and professors all handed original documents to the printing sections through the office of training materials, to be offset printed.
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