catalyst
['kætəlist]
n.催化剂, 刺激因素
例句与用法:
A process by which the hydrocarbon molecules of petroleum are broken into simpler molecules, as of gasoline or kerosene, by the addition of hydrogen under high pressure and in the presence of a catalyst.
氢化裂解将石油的含氢分子分裂成更简单的分子(象汽油和煤油的分子)的过程,此分裂过程是在加催化剂及高压氢气的条件上进行的
A substance, especially an enzyme, that initiates or modifies the rate of a chemical reaction in a living body; a biochemical catalyst.
生物催化剂能在活的体内产生化学反应或改变生物体内化学反应速度的物质,尤指酶; 生物化学催化剂
The offer of a new job provided just the catalyst she needed.
这份新工作正是她所需要转变的契机。
词形变化:
名词复数: catalyses |
n.
1. 【化】催化剂
2. 刺激(或促进)因素
catalyst
词形变化:
名词复数: catalyses |
同义词:
chemical agent | substance | compound | reagent | catalytic agent | promoter | spur | facilitator | stimulus | incentive | goad | spark | accelerator |
反义词:
catalyst['kætəlist]n.1.■【化学】催化剂,触媒2.■刺激(或促进)因素;作为促进因素的人(或物),刺激物;媒介物
catalystcatalyst[ˈkætəlist]n.1.■【化】 催化剂, 接触剂, 触媒, 催化转换器; 刺激[促进]因素; [口]有感染力的人catalyst case催化室, 反应室[器]catalyst chamber触媒室, 催化剂室
noun
- a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
催化剂;触媒剂
■(figurative)a person or thing that precipitates an event
(喻)促进事情发展的人(或物)
the prime minister's speech acted as a catalyst for debate.
首相的演讲对争论起到促进作用。
- early 20th cent.: from catalysis, on the pattern of analyst
catalyst
名词 catalyst:
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
同义词:accelerator
something that causes an important event to happen
catalyst
■BD-type boilers, smoke candles - agent, a catalyst, additive manufacturing.
BD型锅炉除烟垢节能剂、催化剂、添加剂制造。
■BD-type boilers, smoke candles- agent, a catalyst, additive manufacturing.
bd型锅炉除烟垢节能剂、化剂、加剂制造。
■Modification of CoMo/TiO_2 Al_2O_3 Catalyst by Gas Phase Fluorination?
CoMo/TiO_2-Al_2O_3催化剂的气相氟化改性
■SRY is expected to be a new active component of heavy oil cracking catalyst.
SRY分子筛可望成为一种新的重油裂化催化剂活性组元。
■WHATWG also acts as a useful catalyst in the Web standards world.
WHATWG在Web标准世界中还是有效的催化剂。
■Competition is the catalyst for social development and an impetus to mankind civilization.
“竞争是社会发展的催化剂”,它是促进人类文明的动力。
■Which command would back up the Catalyst config file?
下列哪条命令可备份?
■The viscosity reduction rate is over 85% at 240℃, 24hr, with catalyst accounting for 0.2% and toluene for 0.1%.
与助剂甲苯复配,进行了稠油化学降黏的强化实验。
■Abstract: Ammoxidation catalyst MB-98 is used to produce Acrylonitrile.
丙烯氨氧化催化剂MB-98用于生产丙烯腈,由于催化剂在贫氧区导致的晶格氧的失去,引起催化剂活性降低,为了恢复催化剂活性延长催化剂使用周期,必须多次再生。
■To increase the rate of reaction, a catalyst is used.
为了提高反应速率,可以使用催化剂。
■For measuring abrasion of catalyst particles, three basic attrition test apparatus are used.
为了测定催化剂颗粒的磨损,可使用三种基本磨损测试装置。
■Be a role model as "Coach and Catalyst" for Product and Systems quality.
为产品和系统质量构建一种诸如“教练与催化剂”的角色模型。
■In order to maintain the catalyst at a high level of activity the feedstock must be carefully purified.
为保持催化剂的高度灵活性,必须对进料精心加以净化。
■One may also adjust the conditions to monitor the desorption of adsorbate from the catalyst.
也可以调节条件以检测催化剂上吸附质的解吸。
■Debate is the best catalyst of thought.
争论是思想最好的催化剂。
■The application of palladium-carbon catalyst was intr oduced.
介绍了钯炭催化剂的应用。
■K2CO3 is chosen as catalyst which is accessible and nontoxic.
以K_2CO_3为催化剂时,需要在较高的温度下才能使开环聚合反应进行完全,K_2CO_3无毒性且工艺性良好,但催化效能较低。
■Resin acid was hydrogenated used nano-Ni as catalyst.
使用纳米镍催化剂进行树脂酸的氢化反应。
■The action of a catalyst, especially an increase in the rate of a chemical reaction.
催化作用催化剂的作用,尤指加快化学反应速度的
■Catalyst - The Elegant MVC framework.
催化剂-优雅mvc架构。
■The activity of catalyst depends on the loading amount of Cu.
催化剂中Cu的担载量是影响催化剂的活性的一个重要因素,在0-4.35%的范围内,伴随着担载量的增加,吲哚的选择率同步增加。
■A substance that reduces or destroys the effectiveness of a catalyst.
催化剂减缓物质减轻或消除一种催化剂作用的物质
■The catalyst vendors came out with a catalyst incorporating a low surface area, high purity alumina carrier.
催化剂出售商供应了一种具有表面积小,纯度高的氧化铝载体催化剂。
■Utilizing catalyst to enhance pulse discharge for volatile organic compounds treatment.
催化剂强化脉冲放电治理有机废气。
■The catalyst is subjected to a uniform ram pressure.
催化剂承受均匀活塞压力。
■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。
■Isokinetic temperature is decreased with addition of catalyst.
催化剂能够提高碳粉的气化性能,使其等动力学温度降低,特别是当细化和催化同时作用时气化反应效率更高;
■A substance,such as a petroleum distillate,that is used as a catalyst,as in the spreading of an intentionally set fire.
催化剂,促媒一种可用作催化剂的东西,如石油蒸馏剂,可使纵火得以蔓延
■Reactor, regenerator, flue, inclined inserting mouth and so on in catalyst cracking apparatus.
催化裂化装置反应器、再生器、烟道、提升管斜插口等部位。
■Online monitoring system for fan on catalyst reforming unit.
催化重整装置风机在线监测系统。
■Commonly, a chlorate candle is a powder mixture of sodium chlorate, catalyst and metal fuel.
其产氧原理是利用燃料燃烧所释放的热量来促成氯酸盐或高氯酸盐分解,释放出氧气。
■The mingling of men and ideas was a revolutionary catalyst in itself.
农民在部队里接触了许多人,学到许多新思想,这本身就是一种革命的催化剂。
■They treated cotton with a solution of these chemicals and a catalyst, dried the cloth, and then backed it.
利用这种产品的溶液,在催化剂的作用下,对棉织物进行处理,织物干燥后再进行烘焙。
■Catalyst addition not only reduces the residual ozone content by 60.
加入臭氧催化剂能使剩余臭氧含量降低60。
■The encapsulated catalyst may recovered from the reaction medium and re-cycled.
包封的催化剂可以从反应介质中回收并重新循环使用。
■It is an important catalyst to the cause of our liberation.
原译:这是我国解放事业的重要触媒(催化剂)。
■At last, the developing appraisal is the catalyst for students' development.
发展性评价,是促进学生主体性发展的催化剂。
■The reaction takes place only in the presence of a catalyst.
只有在催化剂的作用下,反应才会发生。
■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。
■Twigg, M.V., Catalyst Handbook (Second Edition), Wolfe Publishing Ltd., London, England, 1989.
吴荣宗,工业触媒概论,国兴出版社,新竹,台湾,中华民国,1989。
■Quality is the all-important catalyst that makes the difference between success and failure.
品质是决定成功与失败的最重要的因素。
■Commercially two main types of hydrogenations are carried out with Nickel catalyst.
商业上采用的以镍作催化剂的氢化有两种。
■Catalyst returning to the reactor may not be completely regenerated because of insufficient time in the regenerator.
因为催化剂在再生器中停留时间不足,故返回反应器的催化剂可能未被完全再生。
■It is thus a catalyst that provides the buyer and the seller with mutual protection in dealing with each other.
因此,正是这种催化剂,它在购货方和销货方的交易过程中对双方都提供相互的保护作用。
■Hence we may have to search for a suitable catalyst, to speed up attainment of equilibrium.
因此我们可能必须寻找一种适当的催化剂,以加速反应达到平衡。
■Consequently, ferritin particle would be the catalyst source in this paper.
因此,本文中将以铁蛋白颗粒作为成长碳管的催化剂来源。
■The butane conversion of catalyst aged in different pH has similar value.
在不同pH值老化的催化剂先驱体,经活化后对丁烷的转化率基本相同。
■Catalyst sintering in fixed-bed reactors: deactivation rate and thermal history.
在固定床式反应器中的催化剂烧结:失活的速度和热变化过程
■Catalyst particles were found together with the BCN nanotubes.
在所有生成的BCN纳米管中含有催化剂颗粒 .
■On vaporization it reduces the bulk density of upflowing mixture and promotes the circulation of catalyst.
在汽化时使向上流动的混合物的松密度减少,并促使催化剂循环。