请输入您要查询的英文单词:

 

单词 cupellation
释义 cupellation|kjuːpəˈleɪʃən|
Also 8 copp-, cupp-.
[f. cupel v. + -ation, after F. coupellation.]
The process of assaying or refining the precious metals in a cupel; the separation of silver from argentiferous lead, on a large scale, on a cupel.
a1691[see cupelling b].1750Phil. Trans. XLVI. 586 That Gold and Silver may be purified from all heterogeneous Substances by Coppellation.1880Sat. Rev. 20 Mar. 385 Mr. Crookes suggests that thallium might be used instead of lead for the cupellation of silver.
随便看

 

英语词典包含277258条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/22 15:27:31