cupellation
The assaying of precious metal in a cupel.
simple past tense and past participle of declutter
Concerned with something else; distracted; giving one's attention elsewhere. / (taxonomy, not comparable) Describing a scientific name that was previously used, a junior homonym.
Britain standard form of specialty.
化学者は銀の試料の純度を確かめるために、杯を用いた貴金属の分析を実演した。
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