catalysts

英 [ˈkætəlɪsts] 美 [ˈkætələsts]

n.  催化剂; 促使变化的人; 引发变化的因素
catalyst的复数

柯林斯词典

  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.
    点击展开全文

    双语例句

    1. The Greens were the catalysts of a necessary change in the European consciousness.
      绿党促使欧洲人的观念发生了必要的改变。
    2. Catalysts are materials which greatly speed up chemical reactions.
      催化剂是可以大大加速化学反应的物质。
    3. The article also puts forth some advice on the research and development of catalytic oxidation catalysts.
      同时，对催化氧化技术的进一步研究提出了建议。
    4. Ammonium thiosulfate as a novel sulfiding agent was used for presulfidation of hydrodesulfurization ( HDS) catalysts.
      研究了新型固体硫化剂硫代硫酸铵对加氢脱硫催化剂的预硫化。
    5. The formation and catalytic properties of catalysts were studied and characterized by elemental analysis, XPS, TPDE, TPR, CO adsorption and benzene hydrogenation.
      通过元素分析、TPR、TPDE、XPS，CO吸附和苯加氢反应对以镍配合物和簇合物为前体制备的催化剂的性能及其制备过程进行了研究和表征。
    6. Finally, the development trend of solid superacid catalysts is presented.
      展望了固体超强酸催化剂在生物柴油制备中的发展方向。
    7. The evaluation methods for coke factor and gas factor of FCC equilibrium catalysts were discussed.
      探讨了催化裂化平衡剂生焦因子和生氢因子的评价方法。
    8. BASF employs synthetic inorganic chemists to develop new catalysts and pigments.
      巴斯夫公司雇用无机化学家合成催化剂和开发新颜料。
    9. The Study of PdO-CeO_2 Composite Catalysts for CO and CH_4 Catalytic Oxidation
      PdO-CeO2复合氧化物催化剂的CO和CH4催化氧化性能研究
    10. At present, there are mainly two kinds of catalysts, iron-based and cobalt-based, for it.
      目前应用的费托合成催化剂主要有铁基和钴基催化剂两大类。
    11. In this paper, we adopted the sol-gel, dipping and smear methods to prepare the soot oxidation catalysts.
      本论文采用溶胶-凝胶法、浸渍法和涂抹法制备了碳烟氧化催化剂。
    12. This paper studies the optimal reaction conditions for the preparation of colloidal copper catalysts without protection of N_2.
      本文详细研究了无氮气保护下胶体铜催化剂的制备条件。
    13. Precious metal catalysts synthesis and its catalytic preparation of hydrogen from biomass;
      贵金属催化剂的合成及其催化生物质制备氢气；
    14. The catalytic activity and selectivity of the catalysts for n-pentane isomerization at ambient temperature were investigated.
      考察了所制备的催化剂上常温下正戊烷异构化反应的活性和选择性。
    15. The effects of reaction time, solvent and catalysts were investigated.
      考察了时间、溶剂和催化剂对反应的影响。
    16. Recent progress in improving the sulfur resistance of noble metal aromatic saturation catalysts is reviewed in this paper.
      本文着重对改善贵金属芳烃饱和催化剂抗硫性的最新研究进行了综述。
    17. Recent research progress on the propylene epoxidation catalysts which use molecular oxygen or hydrogen peroxide as oxidants is reviewed.
      评述了以分子氧和双氧水为氧源的丙烯环氧化催化剂体系的最新研究进展。
    18. Effects of several kinds of acidic catalysts on castor oil dehydration have been explored.
      考察了若干种酸性催化剂对蓖麻油脱水的影响。
    19. The catalysts for selective conversion of high n-alkanes into their branched isomers were introduced, particularly the mesoporous materials.
      介绍了长链正构烷烃异构化的催化剂，并着重探讨了介孔分子筛催化剂在这方面的研究进展。
    20. Activities of the catalysts for the WGS and MSR werealso carried out using a conventional micro-reactor flow system.
      此外，使用传统的微反应器流系统对WGS和MSR的活动性进行测量。
    21. Noble catalysts have high activity and selectivity, and the reaction conditions are mild.
      贵金属催化剂活性高，选择性好，反应条件温和。
    22. When classic mesoporous aluminosilicates are used as catalysts, both phenol conversion and2,4-DTBP selectivity are very low.
      普通介孔硅铝酸盐作催化剂时苯酚的转化率和2，4-二叔丁基苯酚的选择性都偏低。
    23. In addition, the research of other routes and catalysts for DMC synthesis are also carried out.
      此外对其它新的DMC合成路线及催化剂也进行了探索性研究。
    24. The influence of catalysts, solvents, reaction temperature and reaction time on the product distributions was investigated emphatically.
      考察了催化剂、溶剂、反应温度和反应时间对重排产物分布的影响。
    25. Recent research development in solid phase crystallization method for preparing supported metal catalysts was reviewed.
      综述了近几年发展起来的一种负载型金属催化剂的制备方法&固相析出法的研究进展。
    26. It is found that the catalysts have a strong effect on the growth of BCN nanotubes.
      实验中发现催化剂在BCN纳米管的生长过程中有重要作用。
    27. TPR results showed that the reduction ability of catalysts was determined by the calcination and composition.
      TPR结果表明焙烧温度和复合氧化物的组成决定了材料的可还原性能。
    28. The influence of the reaction time, the quantities of catalysts on the yield and quality were investigated.
      研究了催化剂的用量，水醇比，反应时间对收率和质量的影响。
    29. Five catalysts were prepared from nickel ores and optimal catalyst was screened out.
      以富含镍的矿石为原料，制备了五种催化剂，确定了最佳催化剂。
    30. Spiroglycol is synthesized by circulating one-pot method with formaldehyde, isobutylaldehyde and pentaerythritol as main materials under catalysts.
      以甲醛、异丁醛和季戊四醇为主要原料，在催化剂作用下利用循环一锅法合成螺二醇。
    点击展开全文

    考试分类

    行业分类

    柯林斯词典词频分级词汇

    其他分类