优缺点

The oxidation reaction, the addition of nucleophiles to C-C multiple bonds, cyclization of enynes and cyclopropane compounds catalyzed by gold were intrduced.

第二章：介绍了环丙烷亲核开环反应，总结了以往亲核开环反应的优缺点。

Firstly the principles and implementary steps of the MPSTD algorithm based on polar and cylindrical coordinates are put forward.

系统、全面地分析总结了MPSTD算法的计算流程和各项关键技术，对各项关键技术的优缺点进行了分析和比较。2。

This article through the research experience type entertainment marketing concept and the marketing construction, the multianalysis Mongolia cow dairying and Hunan Wei Shiyi the industry cooperation carried on the experience type entertainment marketing the background, the same goal expense group as well as their depth cooperation obtains the success the valuable experience, as well as it hastened by this analysis experience type entertainment marketing good and bad points in our country's development potential.

本文通过研究体验式娱乐营销的概念及其营销架构，详细分析了蒙牛乳业与湖南卫视异业合作进行体验式娱乐营销的背景、相同的目标消费群以及他们深度合作取得成功的宝贵经验，以此分析体验式娱乐营销的优缺点以及它在我国的发展势趋。

By comparing, both advantages and disadvantages of the two damping methods are obtained.

通过对两种方法的对比，总结出了它们各自的优缺点。

Be calculated through real case and compare, discussed diverse datum line to install a method to reach the actor defect of different method to the influence of CDM project.

通过实际的案例计算和比较，讨论了不同基准线设置方法对CDM项目的影响及不同方法的优缺点。

In an application of the design process, the debugging and testing is a very important.

本文在最后总结了所完成的工作并提出了本文的特色，同时还提出了整个系统的优缺点。

The decoloration of the six dye was studied in titanium dioxide which was prepared by hydrolysis methods.

经XRD对三种方法制得粉体进行了表征，讨论了三种方法的优缺点。

The status and new development of the study on sludge decrement technologies at home and abroad are introduced in the article.

文章简要介绍了近年来国内外实现污泥减量化技术的研究现状和进展情况，分析了各种技术的优缺点，为污水处理技术人员提供参考。

The selection of geological prospecting in different stages(initial-prospecting, detailed-prospecting)(2)the selection of geological prospecting in the deep-laid and shallow-laid of tunnel project (3)the selection of geological prospecting of tunnel projecting in different geological conditions Finally, the author summed up main problems needing to be solved in tunnel engineering geological prospecting as follow:(1)differentiate stratum and find out the depth and thickness of different stratums in the tunnel section (2)find out geological structure and existence situation of fault, broken zone and weak plane (3)find out weathering level of bed rock to classify surrounding rock combining speed materials (4)differentiate stratum structure of the entrance of tunnel to judge the stability of it (5)find out existence situation and performance of ground water (6)situations of other harmful geological phenomenon In view of above problems and classification of surrounding rock, the author showed principles of rational choosing of methods in geological prospecting and counted disperse range of physical character parameter value in different petrosal character, getting achievements as follow:(1)summarization of effect, merits and demerits of different geological prospecting methods in the tunnel geological investigation (2)method selection and arrangement principle of tunnel engineering geological prospecting in different geological conditions and prospecting stages (3)According to previous experience and cases, the author concluded the物性parameters most in use ,and showed the basis of selecting geological prospecting methods in different geological conditions.

论文中用几个应用实例来说明：(1)不同勘察阶段物探工作的选用；(2)深埋、浅埋隧道工程物探工作的选用；(3)不同地质条件隧道工程物探工作的选用。最后总结归纳出隧道工程物探所需要解决的问题主要有：(1)划分地层，查明隧道通过剖面的各地层深度与厚度。(2)查明地质构造，隧道轴线段有无断层、破碎带、软弱层面等。(3)查明基岩风化程度，从而结合速度资料进行围岩分级。(4)划分洞口地层结构，判断洞口稳定性。(5)查明地下水赋存情况及其活动动态。(6)其他不良地质现象存在情况。针对上述需要查明的地质问题与计算围岩分级情况，论文提出合理选用物探方法的原则，并统计了物性参数值在不同岩性中的分布范围。得出以下研究成果：(1)总结出各物探方法在隧道地质调查中的作用和优缺点。(2)得出不同地质条件下和不同勘察阶段，隧道工程物探方法选择和布置的原则。(3)根据以往工作经验和事例，对常用的物性参数进行了归纳总结，同时介绍了不同地质条件下物探方法选择的依据。

This paper brings forward the thought of delamination about remote measurement and control and discusses the disadvantage and advantage about B/S and C/S.

提出了远程测控系统的分层思想，研究了构建实时数据发布的B/S、C/S结构的优缺点。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。