concentrationof

常用释义

concentrationof

聚集

专四高频词汇 - 豆丁网 ... concentration on sth 专心,集中精力 concentration of sth 集中,聚集 concern about/for/over 担心 ...

浓度

Oxygen vacancy concentration_翻译 ... 高氧： high oxygen 浓度： concentration of 效价： Working concentration ...