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单词 catalyst
释义 cat·a·lyst AHD[kătʹl-ĭst] D.J.[ˈkætlɪst]K.K.[ˈkætlɪst]n.(名词)
    1. Chemistry A substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.【化学】 催化剂:一种与反应物相关、通常以小剂量使用的物质,用来改变和加快反应速度,而自身在反应过程中不被消耗
    1. One that precipitates a process or event, especially without being involved in or changed by the consequences.触媒:加速一个过程或事件的进度,但自身并未卷入或不被其后果改变的物质
Etymology语源
  1. From catalysis 源自 catalysis
References参考词汇catalyst, ferment, leaven, leavening, yeast
  1. The central meaning shared by these nouns is "an agent that stimulates or precipitates a reaction, development, or change": 这些名词共有的中心意思是“剌激或加速反应、发展或变化速度的动因”: a serious breach of trust that was the catalyst for the divorce;成为离婚催化剂的一次严重的背信行为;love, the most powerful ferment;爱,最有力的改变媒介;the leaven of reform working in their minds;变革的媒介在他们的头脑中运作;a leavening of humor;幽默的发酵剂;the yeast of revolution. 引发革命的介质
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更新时间:2026/2/8 21:24:34