缺位

On the basis of molecular design and assembly, the polyoxometalate compounds supported by Keggin, Dawson, lacunary Keggin, and Silverton-type etc. polyanions on the basis of well-known and novel polyanions as building blocks were successfully synthesized by the hydrothermal technique, which are"decorated"or"bridged"by organic N-donor and/or O-donor ligands. The study on synthetic conditions and rules for these hybrid compounds and characterization by X-ray crystallography, spectroscopic, thermal, electrochemical and magnetic properties are carried out.

本文主要利用水热合成方法，从分子设计及组装的思想出发，借助不同N和含O的有机配体对多金属氧酸盐阴离子结构进行&修饰&或&桥连&，合成了一些以饱和Keggin结构、饱和Dawson结构、缺位Keggin结构和Silverton结构等阴离子为构筑模块的多金属氧酸盐化合物，研究了这些化合物的合成条件及规律并对它们的晶体结构、谱学性质、热性质以及磁性质进行了研究。

Hybrid mesoporous molecular sieve materials with hexagonal mesoporous structure and covalent bonded polyoxometalates were synthesized based on tetraethoxysilane anti lacunary polyoxometalate, SiW11, via sol-gel method in the presence of triblock copolymers P123 as the structure-directing agent. The influences of molar ratio of inorganic precursors and aging temperature on the structure and the loadings of SiW11 in the hybrid materials were investigated. Some reaction details in the synthesis were revealed.

用嵌段共聚物P123为模板剂，正硅酸乙酯和缺位结构的多金属氧酸盐SiW11为无机前驱体，由溶胶－凝胶法合成了具有六方结构和SiW11共价键联的介孔分子筛杂化材料SiW11/SBA-15，着重考察了无机前驱的配比和老化温度对杂化材料结构及SiW11负载量的影响。

The hybrid mesoporous materials, PW11/SBA-15, were synthesized using tetraethoxysilane and lacunary polyoxometalate Na7PW11O39 (PW11) by a co-condensation approach in the presence of triblock copolymer EO20PO70EO20 (P123) as a template.

采用三嵌段共聚物EO20PO20(P123)为模板剂，正硅酸乙酯和缺位Keggin型多金属氧酸盐Na7PW11O39(PW11)为无机前驱体，由共缩合法一步合成了PW11/SBA-15介孔杂化材料。

The second chapter analyzes the problems of nonindependent governance, insider control and owner absence in the governance structure of solely state-owned company.

第二章对国有独资公司治理结构中的非独立治理、内部人控制及所有者缺位的问题进行了分析。

Moreover, we examine how the agency cost between managers and liquid shareholders is affected by nonliquid shares and stateowned shares, which we believed to exist only in Chinese Market. Through the same method of event study, we find a symmetric effect regardless of the proportion of nonliquid shares, and this shows that the proportion of nonliquid shares is not a factor of conflicts between managers and liquid shareholders. As for the sub-sample with stateowned shares, there is a larger positive price impact for firms with high proportion of stateowned shares, which tells us that the stateowned shares do raise the problem of "absence of the owner", and it is a part of agency cost in China.

我们进一步检验了国内特殊存在的非流通股以及国有股对于管理层与流通股东之间代理成本的影响，通过同样的事件研究方法对上述样本进行市场宣告反应检验，结果发现非流通股比例不同的公司其市场反应并无显著差异，说明非流通股的存在对管理层与流通股东之间的代理问题没有影响；而国有股比例不同的公司其市场宣告反应存在显著差异，这说明国有股产生的&所有者缺位&问题成为国内代理成本的一部分，并确实影响了现金股利的发放。

In China s current overseas direct investment there exist such issues as backward statutes of overseas investment,vacancy of investment encouragement mechanism and overelaborate procedure for examination and approval .

目前我国海外直接投资存在着海外投资法规滞后，投资激励机制缺位和海外投资的审批程序繁锁等问题。

For a long time period, the absence of criticism, in a certain extent, caused the superficialness and fickleness of artworks. It also raised an unreasonable fever which leads to a loss beyond retrieval.

艺术品市场长期以来的批评缺位，不但让一拥而上的画作浮躁缺乏思想性，也让众人头脑发热，群体涌入，回头却发现身后只有独木桥一座，能全身而退的只是少数。

From the questions of our country actuality in agriculture production,"lacking some technology and bogging down" in technology service and unabundant strength, the text put forward some countermeasure of reforming current working and conversion mechanism of agriculture technology and have the technology men and the farmers hand in hand set up benefit commonalty to play an exemplary role and enhance workers' technology quality to promote the science research facing the production forefront and to apply the achievements in scientific research to production.

本文从中国农业生产的现状、科技服务&缺位和滞后&和力量不足等问题入手，提出改革现行的农业科技运行和转化机制、开展科农携手共建利益共同体、发挥示范榜样作用、提高劳动者的科技素质等对策，促进科学研究面向生产第一线和科技成果直接应用于生产，为农民提供全方位、多层次、多领域的科技服务，推进农村全面建设小康社会进程。

Besides,criticals from net-literature are also different from traditional ones and bring along with some unavoided problems and misunderstandings because of lack of subject and special openess,interaction and freedom,affecting its well-development.

此外，网络文学批评也有别于传统文学的批评，由于批评主体的缺位，网络的开放、交互和自由性，使得网络文学批评在态度和方法上难免出现一些问题和误区，从而影响到网络文学的健康发展。

Because of the uncomplete system says above and some other reasons such as small corporation chanel ,suspecting investment,service systemys etc.

由于孵化器不孵化、风险投资差、服务体系明显缺位等问题的影响，目前中小企业创业步伐难以迈开。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。