英语词汇“period of effectiveness/usefulness/validity/efficacy”的翻译、意思、用法、释义-英汉双解词典-礼仪网

单词	period of effectiveness/usefulness/validity/efficacy
释义	请查阅词条：efficacy
随便看	consessus consider considerability considerable considerable amounts considerableness considerable/vast/large sum of money considerably considerably considerance considerate considerately considerately considerateness considerateness consideratenesses considerate of consideration considerations considerative considerator consider closely considered considered considerer 课课业课件课余课内课卷课堂课外课室课文 Gaszufuhrkanal Gaszuführung Gaszug Gaszusammensetzung Gaszustand Gaszylinder Gaszähler Gas_Öl_Verbundfeuerung Gasöl Gasölbetrieb