catalyst

noun

1. 催化剂
   a substance that makes a chemical reaction happen faster without being changed itself
2. 促使变化的人；引发变化的因素
   a person or thing that causes a change
   1. I see my role as being a catalyst for change.
      我认为我的角色是促成变革。

1. 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 .
   1. 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。
   2. 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。
2. (化学)催化剂
   In chemistry, a catalyst is a substance that causes a chemical reaction to take place more quickly.

1. 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。
2. 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。
3. Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol by using iodine as catalyst.
   以单质碘为催化剂，通过丁醛和乙二醇反应合成了丁醛乙二醇缩醛。
4. What he said served ( or acted) as a catalyst for my change.
   他的话像催化剂一样促成了我的转变。
5. The negative intense emotion is the University student's catalyst of the intense emotional criminal offence.
   消极的激情是消极情绪的积累，是形成大学生激情犯罪行为的催化剂。
6. Mechanical test results must be evaluated In conjunction with catalyst activity, selectivity, and stability data.
   必须将机械测试结果和催化剂活性、选择性和稳定性数据联系起来进行综合评价。
7. Ethylene glycol monoether acetate are synthesized from acetic acid and ethylene glycol monoethyl ether with supported phosphotungstic acid catalyst.
   以醋酸和乙二醇单乙醚为原料，活性白土负载磷钨酸作为催化剂，合成了乙二醇单乙醚醋酸酯。
8. The Development and Application of Production Control System for Catalyst
   催化剂生产管理系统的开发和应用研究
9. In-situ thermal degrdn. of a com. dehydrogenation catalyst in a fixed-bed reactor is studied exptl.
   用实验研究了在固定床式反应器中一种普通脱氢用催化剂的实时热降解。
10. Dichloropropanol was synthesized by chlorination of glycerol with hydrogen chloride under catalysis of organic acids and self-made inorganic catalyst.
    以甘油为原料，氯化氢气体为氯化剂，分别在自制无机催化剂和有机酸的催化作用下制取了二氯丙醇。
11. With more active catalyst, the reaction was carried out completely.
    由于使用了活性较大的催化剂，反应进行地很彻底。
12. The effects of catalyst and solvent on the reaction were studied.
    探讨了催化剂、反应溶剂等对反应的影响。
13. Phase transfer catalyst was used for synthesis of citral diethyl acetal, the yield has increased.
    用相转移催化合成了柠檬醛二乙缩醛，提高了产率。
14. This process relies on a catalyst of high selectivity and week activity.
    这过程所靠的是一种高选择性和低活性的催化剂。
15. In this paper, the synthesis of iso-butyl diurea by wet way with p-methylbenzenesulfonic acid as catalyst.
    对用对甲苯磺酸作催化剂湿法合成异丁叉二脲的反应进行了研究。
16. Suspension bed hydrocracking technology and water soluble catalyst were used for upgrading of atmospheric residue from Dagang oil field.
    采用悬浮床加氢技术和水溶性分散催化剂对大港常压渣油进行了轻质化和改质研究。
17. Isoamyl butyrate was synthesized from butyric acid and isoamyl catalyzed by composite solid acid as the catalyst.
    用丁酸和异戊醇为原料，复合固体酸为催化剂合成了丁酸异戊酯。
18. The paper described the process method of recovering the metal palladium from waste TDI hydrogenation catalyst.
    阐述了从废TDI氢化触媒中回收贵金属钯的工艺方法。
19. The progress on the research of immobilization of homogeneous catalyst is introduced.
    介绍了均相催化剂的固载化研究进展。
20. The method of preparation of catalyst, compound ratio of activator and catalysis of charcoal active were studied.
    对催化剂的制备方法、活性组分的配比和以活性炭为载体的催化性能进行了考察。
21. In this paper, with solid superacid as catalyst for isoamyl propionate synthesis was studied.
    本论文用固体超强酸为催化剂对丙酸异戊酯的合成进行了研究。
22. Presents the performances and industrial application of TH-1 dehydrogenation catalyst.
    介绍TH-1型脱氢催化剂的性能及工业应用情况。
23. Research situation of synthesis methanol catalyst abroad& at home was introduced;
    介绍了国内外合成甲醇催化剂的研究情况；
24. Latest advances and developing trend in copper-based CO low temperature shift catalyst are reviewed in this paper.
    本文详细介绍了铜基一氧化碳低温变换催化剂近几年来的发展概况和发展趋势。
25. The supported catalyst was systematically optimized with respect to catalyst dosage and calcination temperature.
    实验了催化剂的负载量和煅烧温度对催化剂活性的影响。
26. And the relevant suggestion for developing trend of catalytic cracking process and catalyst is pointed out.
    对催化裂化工艺和催化剂的发展趋势提出了相关的建议。
27. Synthesis of allantoin from glyoxylic acid and urea using ion exchange resins as catalyst was investigated.
    对三种阳离子交换树脂在乙醛酸与尿素缩合反应中的催化活性进行了研究。
28. The solvent capacity of ionic liquid for alkane is important to he separation of the alkylate and the catalyst.
    而饱和烷烃在离子液体中的溶解能力对烷基化产物和催化剂的分离十分重要。
29. In addition, the choices of the emulsifiers system and the catalyst are discussed.
    该部分着重讨论了复合乳化剂体系和催化剂的选择。
30. The influence of middle rare earth oxides on the activity of Pd catalyst has been discussed in this article.
    本文研究了中稀土氧化物对钯催化剂活性的影响。

noun

1. something that causes an important event to happen
   1. the invasion acted as a catalyst to unite the country

2. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

   Synonym:    accelerator