cupelling

常见例句

• This paper gives a detailed description of the advantages of wrap lead cupelling method for the determination of gold and silver in bessemer copper. At the same time, the use of adhesion preventer is very important.
  本文介绍了测定粗铜中金和银包铅灰吹法及其许多优点,同时认为,使用好防粘剂是很重要的。
• 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;
• The wrap lead cupelling method for the determination of gold and silver contents of bessemer copper
  包铅灰吹法测定粗铜中金和银
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