Medieval alchemists attempted to transmute base metals into gold.
中世纪炼丹术士企图把贱金炼成金。
Medieval alchemists attempted to transmute base metals into gold.
中世纪炼丹术士企图把贱金炼成金。
Both conditions can be detected by a temper etch (i.e., nital etch) inspection of the base metal.
两种情本金火蚀刻检查中会发现。
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