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

研究了该催化剂对碘代与丙烯酸乙酯应的催化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.

物载体-钕络物催化剂具有很高的催化性和定向效应.

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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,经催化加氢成异己二醇的方法。

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

采用催化气液同位素交换法制备了氚化雷公藤甲素,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.

本文研究了相转移催化条件下对两可亲核试剂不同位置的烷基化应。

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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)为乙基化试剂,与气固相条件下催化乙醚。

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

对用分子氧催化氧化联二脲制取ADC发泡剂进行了探讨。

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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.

酮渣油是化工生产中的工业废料,经催化交联制成树脂,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.

综述了芳基硼酸联芳基成、二芳基醚成、芳香胺成和催化加成应中的应用。

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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.

采用化学镀膜的方法,空心微珠(沉珠和漂珠)表面进行金属化处理。

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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.

对工业双戊烯气相催化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,主要用于石油化工厂催化裂化装置和催化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.

硫酸介质中,利用催化溴酸钠氧化花青的应,联用顺序注射技术建立了顺序注射催化动力学光度法测定废水中痕量的新方法。

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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,经氯化、气相氟化、气相氢化及氟甲基化等一系列改进的方法成了七氟醚,提供了一条新的成路线。

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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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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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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催化抗坏血酸氧化萘绿B应的应速度常数和表观化能。

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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.

莰烯阳离子交换树脂固定床催化下与乙醇应生成异菠基乙醚。

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经济学人-一周要闻

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

钯用于催化转换器制造以帮助减排,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 年代制造大部分汽车都配有触媒转化器,减少一氧化碳和氮氧化物排放。

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经济学人 Culture

Indeed it turned out that the RNA in ribosomes is not just structural, but also catalytic.

事实证明,核糖体中 RNA 不仅仅是结构且也是催化

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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.

就是利用这些小有机分进行催化反应,我们可以用它制造药物或材料。

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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.

但近年催化转化器已成为汽车上最容易被盗物品之一。

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《金融时》 Podcast

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

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需要一个世纪才能完成催化反应。

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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一个额外小室,EV 车主, 这不适用于您。

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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犯罪浪潮正在席卷,以及为什么人们正在从您 Prius 上锯掉催化转化器。

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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一种叫做催化转化器东西,以净化在发动机中燃烧后空气。

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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催化转换器,可以减少废气中有害成分,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,她对他们世界是陌生,这一事实也起到了一种催化剂作用,促使他们消除了对彼此所有旧有保留意见。

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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.

为了满足您农场严格要求,9 RX 采用了久经考验减排技术,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,他们说有一种特殊形式政府资助会产生巨大影响,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.

且我不认为我们崇拜以同样方式发明电视管人或首先设计催化转化器人或类似人。

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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一种催化反应替代分结构,以便大能够自行堆叠成正确排列。

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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。 所有这一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.

以这种方式制造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(一种储藏电新奇方式),甚至催化转化器都成了共挤压制造合适材料。

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allpossessed, all-possessed, allpowerful, all-powerful, all-purpose, allred, all-relay, all-right, allround, all-round,

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