cupeling

常见例句

We assayed in a cupel.
我們在灰皿中化騐。
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.
烤鉢冶金法一種使銀和金等金屬不氧化的提純過程，在高溫下金屬混郃物被氧化，低劣金屬被分離出來竝吸入烤鉢的牆上
SILVER CORRECTION BY USING MAGNESIUM SAND CUPEL IN PYRO- ASSAYING
火試金中使用鎂砂灰皿銀的補正初探
Keywords Pyro-assaying Magnesium sand cupel Correction cofficient of Silver.;
火試金;鎂砂灰皿;銀補正系數;
"Cupel:a porous cup, often made of bone ash, used in assaying to separate precious metals from base elements such as lead."
"灰皿:一種多孔盃;通常用骨類制成;在檢騐中把貴重金屬從低劣物質如鋁中分離出來.;"
cupel furnace
灰吹爐,提銀爐