cupels

常见例句

We assayed in a cupel.
我们在灰皿中化验。
A refining process for nonoxidizing metals, such as silver and gold, in which a metallic mixture is oxidized at high temperatures and base metals are separated by absorption into the walls of a cupel.
烤钵冶金法一种使银和金等金属不氧化的提纯过程，在高温下金属混合物被氧化，低劣金属被分离出来并吸入烤钵的墙上
SILVER CORRECTION BY USING MAGNESIUM SAND CUPEL IN PYRO- ASSAYING
火试金中使用镁砂灰皿银的补正初探
Keywords Pyro-assaying Magnesium sand cupel Correction cofficient of Silver.;
火试金;镁砂灰皿;银补正系数;
"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.;"
cupel furnace
灰吹炉,提银炉