查询词典 catalyst

On the basis of these, the effect of acid concentration on catalyst behaviors was emphatically studied.

并在此基础上，集中探讨了前驱体制备过程中，滴加的酸浓度对催化剂性能的影响。

That gave her the idea to use the confection as a catalyst.

这给她的思想以甜点作为催化剂。。。。。。。

However, the high cost of the catalyst and the metal contamination of the product remain to be surmounted.

但是，金属催化剂的昂贵价格和重金属的污染一直是工业应用的难以克服的障碍。

To effectively enhance the contraposition selectivity of chlorinating reaction the p-chlorotoluene was prepared by direct chlorination of toluene and chlorine gas in the presence of zeolite catalyst.

为了有效提高甲苯氯化反应的对位选择性，研究了在分子筛催化作用下甲苯与氯气直接氯化制取对氯甲苯。

Therefore, Chinese Chloroacetic acid industry needs to improve present production technics, to increase production capacity and equipment standard, develop and take advantage of newfashioned efficient catalyst, make better manners and methods for controlment, to reinforce recycle and synthetically utilize mother liquor,so as to raise product quality and level, reduce production cost, decrease environment pollution, increase economic benefits.

因此，中国氯乙酸行业要改进现行生产工艺，提高生产规模与装备水平，开发利用新型高效催化剂，改进控制手段与方式，加强母液的回收与综合利用，从而提高产品质量和档次，降低生产成本，减少环境污染，增加经济效益。

The stock market, due to the 4 trillion before the large-scale investment plans for the benefit of the market to gradually dilute the effect of the move in the stock market will be a catalyst for the formation of a new, more effective convergence of the current benefit factor.

股市，在大规模的市场获益的投资计划，逐步淡化股市会带来由于4万亿将是一个新的，更有效地融合形成的催化剂当前利益因素。

Catalyst convertor may effectively reduce harmful exhaust emission, which is broadly used on motor vehicle.

催化转化器可以有效地减少汽车有害物的排放，在汽车上得到广泛的应用。

By using nanosized coper catalyst precursors, and preferably nanosized promoters as well, D/T values of greater than 10, and preferably greater than 15, are obtainable with silicon conversions in excess of 80 wt.%.

通过使用纳米级铜催化剂前体，以及优选纳米级促进剂，大于10，和优选大于15的D/T值可在硅转化率超过80wt。％的情况下实现。

The effects of the different rare earth in catalyst on catalytic activity and molecular weight of copolymer were studied.

考察不同稀土元素对组成的催化剂活性和共聚物分子量的影响。

And according to this opinion, the copolymerization ability of catalyst is estimated.

发现茂金属经负载化后，其聚合行为有很大的改变。

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