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The adsorption capacity of La/TiO2 catalysts increases with lanthanum dosage in the acidic solution. The contribution of actual photodecomposition was determined by desorption process, after the photocatalytic reaction.

在酸性环境时，当触媒以La金属改质后，将会大幅提升吸附能力，添加越多量吸附能力越强，因此可促进染料扩散至TiO2表面而分解；利用反应结束后之脱附程序，将吸附於触媒表面的染料脱附至水溶液中，以厘清实际光催化之降解量。

In the rearrangement reaction of α-pinene oxide, the rule of production distrubtion was related to the surface acid property of the catalysts.

在α-蒎烯环氧化物的重排反应中，产物分布规律与催化剂的表面酸性有很大关系。

The high selectivity cis-pinane prepared from α-pinene by catalytic hydrogenation with nickel catalysts was studied in this paper.

本文研究了以镍系催化剂催化α-蒎烯加氢合成高选择性的顺式蒎烷。

Pt/C waste catalysts are currently mainly recovered using the carrier combustion method to enrich noble metal components and then wet-method metallurgy technology is used to refine the platina.

目前Pt/C型废催化剂的回收主要采用载体燃烧法富集贵金属组分，然后通过湿法冶金工艺对粗铂进行精炼。

This paper has introduced the process of producing open cell polyurethane foam,and particularly discussed the effect of the different types and quantities of polyalcohol, catalysts, and surfactants impact on foam aperture, and analyzed the influences factors of foam reaction.

介绍了大孔径网状聚氨酯泡沫塑料的制备工艺，着重讨论了多元醇种类及不同用量的催化剂、表面活性剂对泡沫孔径和经络的影响，分析了影响发泡反应的多种因素。

It mainly introduced the catalytic degradation of polystyrene and drew a conclusion that degradation products vary with different catalysts.

介绍了聚苯乙烯的催化降解，并得出了使用催化剂不同，降解产品也不同的结论。

More influence of WHSV on activity was observed over smaller pore catalysts.

3催化剂的有效孔径越大，醚化活性受空速的影响越小。

In the end, the application of chiral porphyrin is summarized. It is expected that chiral porphyrin would be effective catalysts in industrial production.

最后总结了手性卟啉研究成果的应用范围，并展望了手性卟啉在催化氧化方面的研究和发展方向。

In the end, the application of chiral porphyrin is summarized. It is expected that chiral porphyrin would be effective catalysts in industrial production. Contents

最后总结了手性卟啉研究成果的应用范围，并展望了手性卟啉在催化氧化方面的研究和发展方向。

The experimental results indicated that these metal oxide catalysts had better catalytic activities to the methylene chloride gas at low concentration, and the catalytic activities increased with the increase of temperature,but decreased with the increase of inlet gas concentration. The CrO3/potsherd catalytic activity was better than V2O5/potsherd, and the CrO3/potsherd catalyst displayed higher activity at the relative low temperature. When the reaction temperature was 320 ℃, the conversion rate could reach 99%, and the result of 100h catalyst stability experiment show that the catalytic activities have good stability.

实验结果表明此类金属氧化物催化剂对低浓度CH2Cl2气体有较好的催化活性，催化剂的活性随温度升高而升高，随入口废气浓度增大而降低，其中CrO3/陶瓷片催化剂的催化活性比V2O5/陶瓷片催化剂的活性好，CrO3/陶瓷片催化剂在较低温度下就表现出较高反应活性，在反应温度320℃时，转化率即达到99%，同时催化剂100h稳定性实验结果表明催化剂活性有很好稳定性，为进一步工业化应用提供理论和实践依据。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐