英[?pjr?f?'ken]
美[?pj?r?fken]
n. 提純; 洗凈; 滌罪; (猶太婦女按教規在月經後行的) 潔凈禮;
[例句]Intermediates which do not meet in-process specifications may be further purified using the same purification procedure described in the NDA.
當采用替代的提純方法時,獲得的產品應象第壹次壹樣,接受最後加工操作與檢驗。
[其他] 形近詞: actification tonification codification