最終更新日：2022/12/07
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A sediment that settles at the bottom of a copper electrorefining cell; it is rich in silver, gold, selenium and tellurium.
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A sediment that settles at the bottom of a copper electrorefining cell; it is rich in silver, gold, selenium and tellurium.
DiQt（ディクト）
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★★★★★★★★★★
