最終更新日：2024/07/28
Dubnium is a synthetic chemical element with the symbol Db and atomic number 105.
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Dubnium is a synthetic chemical element with the symbol Db and atomic number 105.
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Dubnium is a synthetic chemical element with the symbol Db and atomic number 105.
Dubnium is a synthetic chemical element with the symbol Db and atomic number 105.
DiQt（ディクト）
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