综述

The progress of catalysts, which include composite-oxides catalysts and heteropoly compounds catalysts, for selective oxidation of isobutylene to methacrolein were summarized, the mechanism of this reaction on Mo-Bi catalysts was discussed.

本文综述了异丁烯选择氧化生成甲基丙烯醛催化剂，其中包括复合氧化物催化剂和杂多化合物催化剂等的研究现状，讨论了在Mo-Bi催化剂上异丁烯选择氧化生成甲基丙烯醛的反应机理。

In this paper, firstly, not only the incidence matrix ,adjacent matrix, cycle matrix, cut-set matrix of an undirected graph are summarized, but also the close contact between a graph and its corresponding matrix are discussed ; secondly, many problems of a graph which are solved by analysing its matrix are listed as follows:1、The co-tree set of a graph is obtained by using its cycle-matrix ; 2、The branches of its spanning tree are given by using its cut-set matrix ; 3、By making use of the incidence matrix of a graph ,not only its vertex cut 、cut vertex 、isolated point and spanning tree can be obtained ,but also the two sides which are whether parallel or not can be judged ;4、By using their adjacent matrix ,the two graphes which are whether isomorphous or not can be judged; once more, there is a detailed introduction in view of special graph (for example: bigaritite graph ,regular graph and so on);last but not least, a graph method of calculating the N power of a matrix is given and the practical applications of the theorem for degree is indicated.

本文首先综述了无向图的关联矩阵，邻接矩阵，圈矩阵，割集矩阵以及图和它对应矩阵之间的关系；其次总结出了利用上述各类矩阵可以解决的图的若干问题：1、利用图的圈矩阵可以求其连枝集；2、利用图的割集矩阵可以求其生成树的树枝；3、利用图的关联矩阵不仅可以求其割点、点割集、连通度、孤立点和生成树，而且可以判断两条边是否平行；4、利用图的邻接矩阵可以判断两个图是否同构；再次，针对特殊图（例如：二分图、正则图等等）的邻接矩阵作了详细介绍；最后，得到了利用图计算矩阵的N次幂的方法，指出度数定理的实际应用。

Recent developments in the synthesis,modification and catalytic properties of titanium silicalite molecular sieve are reviewed,including the developments in the synthesis of TS-1 with hydrothermal and isomorphous replacement methods,the modification of TS-1,as well as applications in catalytic oxidation and acid catalysis systems.

本文重点综述了近年来钛硅分子筛催化材料的合成、改性及其催化应用的研究进展，包括钛硅分子筛（TS-1）的水热合成方法和同晶取代合成法、改性、成型与负载以及钛硅分子筛催化氧化功能和酸催化功能的研究。

In this paper stable isotope techniques applied to forest ecosystems were overviewed.

本文综述了稳定性同位素技术在这一领域的应用进展。

Through reviewing the literatures on Jamesian model of self and self worth, main theoretical constructs and empirical studies, the study verified the process of self-worth, and divided it into self-worth of glass-of-self, self-worth of self-perception and self-worth of social comparison.

通过文献综述阐明自我价值感的概念、理论模型和实证研究，提出了自我评价过程的自我价值感，并把自我评价过程的自我价值感区分为镜中自我的自我价值感、自我知觉的自我价值感和社会比较的自我价值感。

Secondly, analyses the impact of fictitious economy development on money supply by ADF test and Johansen cointegration test.

论文首先在综述国内学者对虚拟经济含义的基础上界定虚拟经济范畴，并阐明研究虚拟经济对货币政策影响的必要性，在此基础上，构建虚拟经济发展环境下中国货币需求函数模型；其次，运用ADF检验、Johansen协整检验等方法分析虚拟经济发展对货币供给量的影响。

If that is all that is wanted, the title De Regulis Juris Antiqui can be read in an hour.

假如这就是全部所想要的，那么《古代法理综述》在一小时就能读完了。

The collection and conservation of Dispyros kaki germplasm resources in the world was reviewed.

综述了国内外柿树遗传资源收集、保存以及研究现状。

The paper focuses on the advance of the influence to karst water by agricultural land use and land cover.

文章着重从农业土地利用出发综述了当前农业土地利用对岩溶水影响的研究。

Based on the reviews made by Kasper ＆ Rose and Kasper, this essay attempts to show the new findings from the studies don＇ t support all that Ellis stated.

本文将基于Kasper和Rose以及Kasper所做的语用习得研究综述对Ellis所提出的语用习得理论做出回应。

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