查询词典 catalysis

The methanolysis of soybean oil and waster cooking oil bylipase-catalysis were not significant different, which showed that lipase was an effectivecatalyst on transesterification of oils having high concentration of free fatty acids.

其次，对副产物甘油的生物利用进行了研究，分别考察了在厌氧和微氧条件下，间歇发酵和批式流加发酵中工业级和试剂级原料对菌体生长及产物合成的影响。

In the last few decades, extensive research has been focused on the exploration of new microporous materials because of their wide applications in the field of catalysis, environment and functional material.

无机微孔材料在催化、环境及功能材料方面的广泛应用使得这类材料的合成研究一直是人们关注的热点。

The degradation of trehalose into smaller molecules such as glucose or fructose under the catalysis of trehalase is the biochemical base of the germination of aquatic microsporidian spores .

内部渗透压的升高是微孢子虫孢子发芽的直接驱动力，海藻糖酶催化海藻糖水解为葡萄糖或果糖是水生型微孢子虫孢子发芽的生化基础，p H值、离子种类及浓度、温度、射线等均能影响孢子发芽。

Organosilicon high-boiling components was by-product from direct synthesis of methylchlorosilanes,The routes for production of monosilane,silicone oil,organosilicon water-proof agent,defoaming reagent,ceramics,organosilicon resin from the high-boiling components and their technical features were outlined,and some suggestions on development direction of catalysis cracking were put forward.

有机硅高沸物是合成甲基氯硅烷单体的副产物，作者简述了利用有机硅高沸物制备单硅烷、硅油、有机硅防水剂、消泡剂、陶瓷和有机硅树脂等产品的生产方法及技术特点，并对高沸物催化裂解产业化的发展方向提出了建议。

Recently, it has been found that the multinucleate complexes play an important role in organism due to their unique catalysis and biological activity.

近年来，人们发现多核配合物在生物体内具有独特的生物活性和催化作用。

Effects of the pretreatment of catalysis, reaction temperature, the ratio of the reactants, the substrate-catalyst ratio and the content of the promoter on the reaction properties of NaK catalysts has been studied in a wide range.

本实验用超声波技术激活金属钾钠合金低共熔物催化剂，考察了催化剂预处理，反应温度，原料配比，催化剂用量以及加入助剂用量等因素对钾钠液态低共熔物催化剂上邻二甲苯与1，3-丁二烯合成OTP反应转化率的影响。

Niobic acid and compounds containing niobium are applied in a wide range of catalysis fields for their unique acidic property and thermal stability.

铌酸和含铌化合物独特酸性和热稳定性，广泛的应用催化领域中。

And titanium dioxide is a promising nonhazardous potential method in organic waste water treat catalyst in application for its high catalysis ac tivity and chemical stability.

TiO2因具有相对高的催化活性、化学稳定性和无毒无害而成为当前应用最有潜力的一种光催化剂。

Firstly, 2-Hydroxy-4-octyloxybenzophenone was synthesized from 2,4-dihydroxybenzophenone and octyl chloride in the presence of N-octyl-diethanolamine borate as ion liquid, and 2-Hydroxy-4-methyloxybenzo phenone was synthesized from 2,4-dihydroxybenzophenone and dimehylsulfate in the presence of N-octyl-diethanolamine borate as catalysis.

首先作为离子液体催化合成了2-羟基-4正辛氧基二苯甲酮和作为相转移催化剂合成了2-羟基-4甲氧基二苯甲酮。

Olid superacid and solid superbase, which are developed in resent years, attract close attention of many researchers, because of high acidic and basic strength, high catalysis efficiency, no pollution to environment, and no corrosion to equipments, reusable and renewable property.

O_4~(2-)/M_xO_y型固体超强酸和γ-Al_2O_3-NaOH-Na型固体超强碱是其中最具代表性、最有工业应用前景的催化剂，本文对两种催化剂及其在有机合成中的应用进行了研究。

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