查询词典 hydrogen

Process comprising contacting initiator with alkylene oxide in the presence of hydrogen fluoride and a double metal cyanide complex catalyst.

一种方法，其包括说明书摘要在氟化氢和双金属氰化物复合催化剂存在下使引发剂与亚烷基氧化物接触。

Silsesquioxanes are a large branch of organic-inorganic silicon-containing compounds. They can be represented as RSiO_(3/2_n, where R can be hydrogen or any alkyl, alkylene, aryl, arylene groups, or organo-functional derivatives of them.

倍半硅氧烷是指所有符合经验公式RSiO_(1.5)(这里R代表氢或任何烷基、烯基、芳基或有机功能取代的烷基、烯基、芳基)的有机无机化合物。

According to the performance and technology, many of them, such as Energy Partition plant invented and equipped by SPA and Alkyne Removement by Hydrogen Addition Plant which was the joint invention of both SPA and East China University of Science and Technology, etc.

其中，我校自行研发的"能源隔断装置"和与华东理工大学联合研发的"加氢脱炔装置"等的性能和技术含量，在国内职业院校中已处于领先地位。

Fifteen years later, by bornharding with alpha rays certain of the lighter atoms, nitrogen and aluminium for example, Lord Rutherford demonstrated the ejection of protons, or positively charged hydrogen nuclei

15年后他用a射线轰击某些较轻的原子，如氮原子和铝原子，向人们展示质子，即带正电荷的氢核的排斥现象。

Polycarbosilane lower the electronic structure and properties of PCS is a kind of high-molecular compound, the main chain by alternating silicon and carbon atoms of the silicon and carbon atoms are connected to hydrogen or organic group, molecular chains of linear or branch structure.

低聚碳硅烷的电子结构及其性质的研究聚碳硅烷是一类高分子化合物，其主链由硅和碳原子交替组成，硅和碳原子上连接有氢或有机基团，分子链为线形或枝化结构。

S. americana ingests the complex organic compounds and excretes hydrogen and other gases.

S。 americana 消化复杂的有机物和分泌氢及其它的气体。

They say hydrogen peroxide or car amide peroxide may also help.

他们说过氧化氢或者一个装有过氧化物的一样会有帮助。

The chemical shifts of amide hydrogen and nitrogen of RppH do not change after the addition of Mg2+.

在得到了RppH的结构信息后，对其生物活性的分子机制进行了初步探讨。

While in the case of system Ⅱ, hydrogen bonding is introduced into SAMs by the amide group.

当末端为氨基和磺酸基时，LB膜与基底间则以离子键的形式存在。

Dodecyl guanidine hydrogen sulfite has been synthesized from dodecyl amine and aminoiminomethanesulfonic acid .

用红外光谱、元素分析、显色反应和熔点方法鉴定了合成产物的分子结构。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。