查询词典 catalyst

N-alkyl is widely used as the important raw material of rubber,primary leather,leather,paint,electron dry-cleaning,detergent,paraffin chloride,n C binary acid,cosmetics,coimage,catalyst,additive,medicine and biological chemistry.

正构烷烃是广泛应用于橡胶、原皮、皮革、油漆、电子干洗、洗涤剂、氯化石蜡、n碳二元酸、化妆品、造币、催化剂、添加剂、医药、生物化学的重要原料。

By adopting the technology of coinstantaneously synthesizing the two products, the optimal reaction conditions are molar ratio of 1∶1 for MN to BA, in the presence of 10 7 % of catalyst at 80 ℃ for 5 h.

本文采用气-质联用技术作为烷基化工艺的评价手段[4 ] ，研究了三氯化铝催化甲基萘的长链烷基化，考察了催化剂用量、芳烷摩尔比

Additionally solved in the catalyst and gas diffusion layers, as well as in the current collector.

此外，在解决催化剂和气体扩散层，以及在当前的收藏家。

In order to solve this bottleneck problem, weuses high temperature colophony catalyst-DNW for the synthesis of isopropyl ether,and the feasibility of this method is studied in this paper.

为了解决这一生产瓶颈问题，本文研究了DNW高温树脂催化剂合成异丙醚可行性问题。

But in all methods of making PFS exist the common problems of low utilization ratio of raw material, high cost of energy, long cycle of reaction, great amount of investment, low productive efficiency, complex working procedure of treatments afterwards and toxicity of catalyst, etc.

但在现有各种制备方法中，普遍存在的问题是原料利用率低、能耗高、反应周期长、投资大、生产效率低、后处理工序复杂以及催化剂的毒性等。

The complex supporters with different mass fraction of TiO2 for preparation W2N/γ-Al2O3-TiO2 catalyst were made by titanic acid tetra-butyl ester sol-gel method and γ-Al2O3 as raw materials.

Al2O3稳定性好、比表面积大，价廉易得，是一种广泛应用的催化剂载体，对以其为载体的油品加氢精制催化剂的研究也很多。

The invention provides a fuel cell carbon platinum-carried compound catalyst with small amount of platinum and high catalytic activity, and a preparation method thereof.

本发明提供了一种铂用量少且具高催化活性的燃料电池碳载铂复合催化剂及其制备方法。

The Carbonyl Compound Mode Evaluation Device is a research chemical production line newly built by Lanzhou Institute of Chemistry Physics Chinese Academy of Sciences, whose main intention is to make qualitative and quantitative evaluation of the properties of cobalt salt catalyst through the process of producing high-carbon alcohol with carbonyl compound .

"羰基合成模试评价装置"是中科院兰州化学物理研究所新建的研究性化工生产线，主要是通过羰基合成制高碳醇的过程，对钴盐催化剂性能做出定性定量的评价。

In this re-imagining of the discovery of the Antikythera Mechanism (an ancient mechanical computer - dating back to 150-100 BCE), our surreal fairy tale follows our guide as she unearths a mysterious object that acts as a catalyst to unfold reality and open up a series of answers in the form of worlds ranging from distorted natural vistas to stylized synthetic futurescapes.

在此重新想象的发现安梯机制（一种古老的机械计算机-可追溯至公元前150-100 ），我们的超现实的童话如下指导她unearths一个神秘的对象，作为一种催化剂，展现现实和开放一系列答案的形式，从扭曲的世界的自然景观，以程式化的合成futurescapes 。

The effects of concent of catalyst, pH value and lamp-house on the catalytic oxidation were investigated.

考察了催化剂的用量、pH值及不同光源对降解作用的影响。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷