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File:Backdrop for presentation of Röntgenium, element 111, at GSI Darmstadt.JPG
来自维基百科，自由的百科全书
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File:Backdrop for presentation of Röntgenium, element 111, at GSI Darmstadt.JPG
Alexander Blecher, blecher.info, the copyright holder
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this work, hereby publishes it under the following licenses: This file is licensed under the Creative
