catalyst是什么意思？

catalyst

英[ˈkætəlɪst] 美[ˈkætlɪst]

• n. <化>触媒，催化剂，〈比喻〉触发因素，促进因素，〈口〉有感染力的人；

复数：catalysts;

例句

• The workers’ demand for better conditions was a catalyst for social change. 工人们要求改善工作条件促进了社会变革。
• Beer staling was also influenced the metal ions as the catalyst for staling re action. 金属离子的存在能催化自由基反应,金属离子清除剂对啤酒老化也有一定作用.
• Various ceramic materials have been suggested as supports for reforming catalyst. 各种陶土管用作转化催化剂的载体.
• Methyl 3 - methoxypropionate ( MMP ) was prepared from methanol and methyl acrylate ( MA ) using sodium methoxide as catalyst. 以甲醇和丙烯酸甲酯 ( MA ) 为原料,甲醇钠为催化剂,合成了 3- 甲氧基丙酸甲酯 ( MMP ).
• Presents the water washing of methanation catalyst used in ammonia plant of Daqing chemical fertilizer plant. 介绍中石油大庆石化公司化肥厂合成氨装置甲烷化催化剂水洗情况.
• The preparation of activated carbon with mesopore by catalyst was summarized. 总结了催化法制备中孔炭的几种路径.
• Uses: Agriculture chemical , fertilizer , fodder and pigment, catalyst, purifying pharmaceutical , disinfectant , magnetisable material raw materials, etc. 用途: 农药 、 料 、 料及颜料, 催化剂 、 化剂 、 性材料原料等.
• The macrokinetics of CO gas coupling reaction on Pd catalyst was studied in a fixed - bed reactor. 采用固定床积分反应器,研究了自制的负载型钯系催化剂上CO气相催化偶联主、副反应的宏观动力学模型.
• A new high activity , lowcost catalyst and the optimal reaction conditions were found by experiments. 通过实验找到了一种新型、高效 、 廉价的催化剂,以及最佳反应条件.
• The Catalyst that is suitable for Shenhua coal liquification was found out through experiment study. 通过试验研究找出了适于神华煤液化的催化剂.

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  催化剂;诱因;诱导者
  You can describe a person or thing that causes a change or event to happen as a catalyst .
  例句
  I very much hope that this case will prove to be a catalyst for change... 我非常希望这起事件能催生变革。 He said he saw the bank's role as a catalyst to encourage foreign direct investment. 他说，他认为银行就应该起到刺激外国直接投资的作用。
• N-COUNT
  (化学)催化剂
  In chemistry, a catalyst is a substance that causes a chemical reaction to take place more quickly.

英汉词典释义

• n.
  <化>催化剂,触媒
  A catalyst is a substance which speeds up a chemical reaction. 催化剂是一种能加速化学反应的物质。 It acts as a catalyst in the process of fermentation. 它在发酵过程中起触媒的作用。
  促进因素;有感染力的人,能激发对方的人
  The workers’ demand for better conditions was a catalyst for social change. 工人们要求改善工作条件促进了社会变革。

英英词典释义

• Noun
  1. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
  2. something that causes an important event to happen;
  "the invasion acted as a catalyst to unite the country"

行业词典

• 体育： 催化剂；
  农学： 催化剂；
  冶金学： 催化剂；
  化学： 催化剂；
  化工： 催化剂；
  医学： 催化剂：能引起催化作用的任何物质；
  航天： 催化剂；