最終更新日：2024/07/29
small fragments of iron, filed from a bar; used to visualize the presence of a magnetic field, and as a food additive
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iron filings
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small fragments of iron, filed from a bar; used to visualize the presence of a magnetic field, and as a food additive
iron filings
DiQt（ディクト）
無料
★★★★★★★★★★
