查询词典 catalytic

In the decade since the publication of the third edition, major advances have been made in the development of efficient new methods, particularly catalytic processes, and in means for control of reaction stereochemistry.

她的第五版相对2001年出版的第四版进行了大幅度的修订，更新了学科发展的相关资料，内容组织更加清晰明朗，特别是计算化学部分。

After prolonged heating 15h, 120° of the origina lly isolated stereoisomer B (melting C point mp: 157° Diels and Alder obtained two new stereoisomers E (mp: 153° and F C), C (mp: 163° Equilibration of B with a catalytic amount of a strong base at 25° ga ve a C).

在比原始分离异构体 B (熔点： 157°C)的方法延长加热时间之后(15h， 120°C)， Diels and Alder 获得了两个新的异构体 E(熔点：153°C)和 F(熔点：163°C)。

We reviewed the application of ionic liquids in organic synthesis in recent years, including both stoichiometric and catalytic versions.

第二部分对可能在离子液体，和中进行的碳-碳键形成反应进行了系统的研究。

Effect of stoichiometric ratioof organic fuel to oxidizer on structures and catalytic activities of the catalysts were studied.

以D，L-丙氨酸为有机燃料，采用溶液燃烧法制备了钙钛矿型复合氧化物La0.8Sr0.2CoO3催化剂，研究了有机燃料与氧化剂的化学计量比对催化剂结构和性能的影响，考察了催化剂的甲烷燃烧活性，并对催化剂进行了表征。

The SiO2-Al2O3-d catalyst was modified with different metal nitrates. It indicates that cadmium nitrate and strontium nitrate could improve the catalytic activity obviously.

用不同种类、不同浓度的金属硝酸盐，对SiO2-Al2O3-d催化剂进行改性研究，发现Cd(NO3)2和Sr(NO3)2改性后，活性和使用寿命较SiO2-Al2O3-d有所提高，而Mg(NO3)2、Ca(NO3)2、Ni(NO3)2改性后的催化剂，活性反而有所降低。

The stunner position in the full bloom of the male community, is a catalytic material, in the shortest possible period of time to destroy a man's ambition to become a woman of his sheep, the man tyrant.

尤物之姿盛放于男权的社会，是一种催化物，可以在最短的时间内摧毁一个男人的上进心，把他变成女人的绵羊、男人的暴君。

In this paper, Melnikov's method is used to discuss a dass of equation governed by flickering on catalytic wires and in chemical reactor, the conditions of the existence of subharmonic bifurcation are obtained.

研究一类描述催化反应的flickering现象的动力系统，应用Melnikov方法对三种不同情形分别给出了系统存在次谐分枝的某些充分条件。

Therefore, the oxygen storage submodel should be taken into account for the three-way catalytic converter mathematic computation.

因此，对三效催化转化器的数值模拟中应加入储放氧模型。

Telomerase reverse transcriptase is the catalytic subunit of telomerase, in the activation of telomerase play a key role.

端粒酶逆转录酶是端粒酶的催化亚单位，在端粒酶的激活中起关键作用。

The superheater tubes for catalytic reforming CO made of 12Cr1MoV steel were broken after being used for 25000 hours.

材质为12Cr1MoV的重催CO高温加热炉管，在服役25000h后发生胀管破裂。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"