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Its catalytic performance in Heck reaction of iodobenzene with ethyl acrylate was studied.

研究了该剂对碘代苯与丙烯酸乙酯应的性能及循环使用性能。

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The catalytic system formed from polymer-supported neodymium complexes shows high catalytic activity and stereospecificity for butadiene polymerization.

聚合物载体-钕络合物剂具有很高的活性和定向效应.

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The product has good catalytic property for the formation of diene stereospecific polymers.

制得的叔碳酸钕具有对二烯烃良好的定向聚合活性。

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A method for the synthesis of hexylene glycol by catalytic hydrogenation from diacetone is presented.

介绍以双丙酮醇为原料,经加氢合成异己二醇的方法。

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The catalytic gas liquid isotope exchange reaction is a good method to prepare tritiated triptolid.

采用气液同位法制备了氚雷公藤甲,探讨了应时间和应介质对应产额的影响。

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Alkylation of ambident nucleophiles different places by using phase-transfer catalytic agent were studied in this paper.

本文研究了在相转条件下对两可亲核试剂不同位置的烷基应。

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The preparation of ADC foaming agent from biurea by dioxygen catalytic oxidation was investigated and discussed.

对用分子氧联二脲制取ADC发泡剂进行了探讨。

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Catalytic synthesis of phenetole by ethylation of phenol with diethyl carbonate(DEC)in fixed bed reactor was investigated.

以碳酸二乙酯(DEC)为乙基试剂,与苯酚在气固相条件下合成苯乙醚。

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The wall catalytic effect is an important factor determining aerothermal heating intensity in the chemical non-equilibrium gas model.

通过与完全气体模型进行了比较,结果发现无论气动力还是气动热都有较大差别。

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It is reseached that the process of catalytic cross-bridging in synthetic ketonic residuum resin and obtained that the utility resin.

酮渣油是工生产中的工业废料,经联制成树脂,于经济和环保方面都有意义。

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The Applications of Arylboronic Acid in biaryl synthesis,synthesis of diaryl ethers,synthesis of aromatic amines and catalytic addition reactions were summarized.

综述了芳基硼酸在联芳基合成、二芳基醚合成、芳香胺合成和加成应中的应用。

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Using a colloidal Pd catalytic system to metalize the surface of precipitators separated from coal fly-ash,the metals such as Cu,Ni,etc.

采用学镀膜的方法,在空心微珠(沉珠和漂珠)表面进行金属处理。

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Preparation process of p cymene with gas phase catalytic dehydrogenation of industrial dipentene was studied and the following results were obtained.

对工业双戊烯气相脱氢制备对伞花烃进行了研究并取得了理想结果。

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The present invention is improved separating pipe of multitubular cyclonic separator for the fume energy recovering system in petrochemical catalytic cracker.

本发明是对现有多管式旋风分离器的分离单管的一种改进,主要用于石油工厂装置和裂解装置的烟气能量回收系统。

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It is based on the catalytic effect of phenols for the oxidation of gallocyanin by sodium bromate in sulfuric acid medium.

在硫酸介质中,利用酚溴酸钠氧花青的应,联用顺序注射技术建立了顺序注射动力学光度法测定废水中痕量酚的新方法。

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Sevoflurane is synthesized from aceton by vapor phase catalytic fluorination, vapor phase catalytic hydrogenation,chloridization and fluoromethylation, which gives a new synthetic method.

以丙酮为原料,经氯、气相氟、气相氢及氟甲基等一系列改进的方法合成了七氟醚,提供了一条新的合成路线。

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To know the effects of internal and external diffusion on gas-solid catalytic reaction, to grasp the common models of liquid-solid uncatalyzed reaction.

掌握理想流动模型;了解多釜串联模型与轴向分散模型模型设计方程的推导过程。

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Much of their current research cuts across boundaries to include fields such as archaeological, bioorganic, bioinorganic, biophysical, catalytic, medicinal, and solid-state chemistry.

简介[英]: They offer PhD programs in the fields of analytical, inorganic, organic, and physical chemistry as well as biochemistry and chemical physics.

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Kinetic constant and apparent activation energy of iodine catalytic reaction of ascorbic acid oxidation Naphth Green B have been determined by spectrophotometric method.

本文采用分光光度法测定了碘抗坏血酸氧萘酚绿B应的应速度常数和表观活能。

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Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子树脂固定床下与乙醇应生成异菠基乙醚。

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经济学人-

Palladium, manufactured in catalytic converters to help curb emissions, hit a new peak.

钯用于催化转换器制以帮助减排,其价格再创新高。

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PBS太空科学

[Newsreader 2] Thieves targeting cars for their catalytic converters.

- [Newsreader 2] 盗贼瞄准汽车的催化转化器。

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PBS太空科学

Well, because of the very unique chemistry that happens inside of a catalytic converter.

好吧,因为催化转化器内部发生了非常独特的化学反应。

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双语版 TED-Ed 演讲精选

Most cars produced since the 1980s are equipped with catalytic converters that reduce the emission of carbon monoxide and nitrogen oxides.

在 1980 年代制的大部分汽车都配有触媒转化器,减少氧化碳和氮氧化的排放。

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2021诺贝尔得主访谈录

Which is using these small organic molecules to do catalytic reactions that we can use to make medicines or to make materials.

就是利用这些小的有机分子进行催化反应,我们可以用它来制或材料。

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PBS太空科学

But in recent years, catalytic converters have become one of the most stolen items on cars.

但近年来,催化转化器已成为汽车上最容易被盗的品之

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《金融时报》 Podcast

Quantum computing can help here because it enables us to understand these catalytic reactions that could take otherwise a century.

量子计算在这里可以提供帮助, 因为它使我们能够理解这些可能个世纪才能完成的催化反应。

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PBS太空科学

A catalytic converter is basically an extra little chamber along your car's exhaust pipe, EV owners, this doesn't apply to you.

催化转化器基本上是汽车排气管上的个额外的小室,EV 车主, 这不适用于您。

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How BIG 科普扫盲(第二季)

They put something called a catalytic converter in their cars to clean up the air after it had been combusted in the engine.

他们在汽车中放置了种叫做催化转化器的东西,以净化在发动机中燃烧后的空气。

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PBS太空科学

So that's why this strange crime wave is taking over and why people are sawing catalytic converters off of your Prius.

所以这就是为什么这种奇怪的犯罪浪潮正在席卷而来,以及为什么人们正在从您的 Prius 上锯掉催化转化器。

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科学大揭秘

Most modern cars are fitted with advanced catalytic converters that reduce the amount of harmful components present in the exhaust, in order to protect the outside atmosphere.

大多数现代汽车都配备了先进的催化转换器,可以减少废气中有害成分的数量,以保护外部大气。

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夜色温柔(上)

Perhaps, too, the fact that she was new to their world acted as a sort of catalytic agent to precipitate out all their old reservations about one another.

也许,她对他们的世界是陌生的,这事实也起到了种催化剂的作用,促使他们消除了对彼此的所有旧有保留意见。

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奇趣工程百科

To fulfill your farm's stringent requirements, 9 RX employs a tried-and-true emissions-reduction technique that includes a diesel oxidation catalyst, a diesel particle filter, and a selective catalytic reduction system.

为了满足您农场的严格求,9 RX 采用了久经考验的减排技术,其中包括柴油氧化催化剂、柴油颗粒过滤器和选择性催化还原系统。

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TED演讲(视频版) 2023年5月合集

But when I talk to banks and investors, there's one particular form of government funding that they say would make a huge difference, and it's called blended or catalytic finance.

但当我与银行和投资者交谈时,他们说有种特殊形式的政府资助会产生巨大的影响,它被称为混合或催化融资。

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TED演讲(视频版) 2023年5月合集

And this kind of blended or catalytic finance has proven to be tremendously effective in areas like affordable housing, where a little bit of government money can go a long way.

这种混合或催化融资已被证明在经济适用房等领域非常有效, 在这些领域,少量政府资金可以发挥很大作用。

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Sway

And I don't see us sort of worshipping the guy that invented the television tube the same way or the person that first engineered the catalytic converter or anything like that.

而且我不认为我们崇拜以同样方式发明电视管的人或首先设计催化转化器的人或类似的人。

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三体 I

At the moment, the lab was attempting to develop a catalytic reaction as a substitute for molecular construction so that large numbers of molecules would stack themselves into the right arrangement.

目前,该实验室正试图开发种催化反应来替代分子结构,以便大量分子能够自行堆叠成正确的排列。

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英语演讲大全

No. What else happened? DDT was banned, the  catalytic converter was introduced, leaded gas was removed from the environment. All of this happened  in those five years, while we were still at war.

不,还有什么事发生? DDT 被禁止, 催化转化器被引入,含铅气体被从环境中移除。 所有这切都发生在这五年里, 当时我们还在打仗。

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经济学人-科技

Solar panels made this way are now in production, and Mr Elrod is already casting his eye over fuel cells, ultracapacitors (a novel way of storing electricity) and even catalytic converters as suitable candidates for manufacture by co-extrusion.

以这种方式制的太阳能板现已投入生产,Elrod也已把目光投向了燃料电池,超级电容(种储藏电量的新奇方式),甚至催化转化器都成了共挤压制的合适材料。

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PBS太空科学

So the U.S. passed these huge, new environmental laws like the Clean Air Act, which led to one of the most monumental innovations ever in cleaning up the way that we drive: the catalytic converter.

因此,美国通过了这些庞大的新环境法,如《清洁空气法》,这导致了有史以来最具有里程碑意义的创新之,旨在净化我们的驾驶方式:催化转化器。

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