cupel
n. 金属提炼炉;(提炼或检验金银的)烤钵灰皿
v. 用灰皿提炼法提炼(金或银)
复数 cupels
第三人称单数 cupels
现在分词 cupelling或cupeling
过去式 cupelled或cupeled
过去分词 cupelled或cupeled
例句
Cupel: a porous cup often made of bone ash used in assaying to separate precious metals from base elements such as lead.
灰皿:一种多孔杯,通常用骨类制成,在检验中把贵重金属从低劣物质如铝中分离出来。