请输入您要查询的英文单词:

 

单词 θ67967
释义
the world > matter > chemistry > chemical reactions or processes > [noun] > processes or substances affecting reactions > promotion > promoter (2)
promoter1911

Chemistry. An additive which increases the activity of a catalyst or otherwise improves its performance. Also: a substance used as an initiator in…

promotor1920

Chemistry. = promoter, n. 4a.

随便看

 

英语词典包含1132095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:2024/9/23 19:24:14