四对的

In this study, the CPE processes of four different kinds of polyaromatic hydrocarbons, acenaphthene, anthracene, phenanthrene and pyrene, with two kinds of silicone surfactants, DC-193 and DC-190, were studied separately, and four different assisting methods for the phase separation of the CPE process including heating at a higher temperature, adding salts, centrifugation and stirring were introduced, respectively.

今利用两种聚醚型有机硅表面活性剂DC-193和DC-190，对蒽、菲、芘和苊四种多环芳烃进行浊点萃取研究，分别使用加热、加盐、离心和搅拌等辅助方法改变相分离过程的速度。通过测定表面活性剂富集相的体积百分率Vs/随时间的变化和最终的萃取率，研究上述四种不同辅助方法对相分离行为和萃取性能的影响。

This thesis systematically studies the comparativeness of Chinese trade in services in four aspects of indices basing upon existing achievements by using quantitative analysis method and qualitative analysis method. Moreover, the indices have been compared with those of the five transitional countries in the same timing period. Three points can be drawn from that study. First, the comparativeness of Chinese trade in services are too weak to compete internationally. Secondly, tourism is the only industry that holds its comparative advantage. Finally, we can learn from what the Poland and Hungary have been doing with their trade in services.

本文采用了定量分析与定性分析相结合等研究方法，在前人研究的基础上，对1995-2000年我国服务贸易的国际市场占有率、比较优势指数、显示性比较优势指数和显示性竞争比较优势指数四个指标进行了计算，较全面、系统地分析了我国服务贸易的国际竞争力，并首次将该四项指标结果同一些转轨经济国家的相同指标进行跨国比较，从中得到三点启示：1、我国服务贸易整体不具备竞争优势；2、旅游业是我国服务贸易中具有较强比较优势的行业；3、波兰和匈牙利两国的成功经验对我国发展服务贸易有一定借鉴作用。

In the first part we have tried to put forward a definition of the euphony and further to analyze its position in the study of rhetoric; In the second part, the euphony phenomenon has been classified according to different dimensions such as function and culture, etc; In the third part we have given the euphonys characteristics wider coverage to deal with the different reflections in the fields of pronunciation, grammar, semantic meaning and context; In the fourth part, we have analyzed the formation of euphony from the point of aesthetics, psychology, social culture and linguistic characters, etc; Base on what is discussed above the euphony phenomenon both in different folkways and styles of writing have been studied in the fifth and sixth parts; And the final seventh part is the conclusion.

本文分为七个部分：第一部分分析了谐音的定义及其在修辞研究中的地位；第二部分按照功能、文化、性质等标准对各种谐音修辞现象进行了分类；第三部分研究了谐音修辞在语音、语法、语义和语境上表现出的特点；第四部分从语言、心理、美学和社会文化四方面研究了谐音修辞形成的基础；第五和第六两部分分别对民俗民风中的谐音现象和不同文体中的谐音现象进行了研究；第七部分为结语。

In this article,we mentioned away to found an online-bank risk monitoring system---""four-dimensionality form aorganic whole""monitoring system.The so-called""four-dimensionality form aorganic whole""is to points concrete measures should be applied on nation,industry,bank and customer these four different dimensionality and auniform technique backup--digital authentication center should be set up against the online-bank's risk.

本文提出构建"四维一体"的网上银行风险监管体系的思路，并详细论述了构建"四维一体"的网投资项目管理师前景上银行风险监管体系的详细步骤：分别从国家、行业本身、银行内部和客户四个不同维度，提出对我国网上银行风险监管的具体对策，并依靠完备的数字认证中心作为技术后盾，进行有效的网上银行风险控制，切实防范网上银行风险。

Discontinuity is an essential feature of the modernity, and primary prerequisite that we launch studying about modernity too; Three motive force mechanisms of modernity—Separation of time and space, disembedding mechanism, reflectivity in knowledge.Modernity has four basic institutional dimensionality :Capitalist, industrialism, military power and surveillance.

现代性的基本特征是断裂，而且也是我们展开对现代性研究的首要前提；现代性有三个动力机制：时空的伸延和分离、脱域机制、对知识的反思性；现代性有四个基本的制度性维度：资本主义、工业主义、军事力量和监督体系，由此所导致的全球化也有四个维度：世界资本主义体系、民族国家体系、国际劳动分工和世界军事秩序。

We investigated the effect of combined application of maize straw, bean haulm, wheat straw and weathered coal on the activity of alkaline phosphate enzyme in calcareous cinnamon soil by means of regression design of 416A-optimization.

本研究采用四因数二次回归 4 1 6A—最优设计方法，通过裸土盆栽试验，在施用少量N、P肥的基础上，研究了玉米秆、豆秆、麦秆和风化煤四种有机物料配合施用对石灰性褐土中碱性磷酸酶活性的影响，建立了上述四个因子与土壤碱性磷酸酶活性之间的数学模型，并分别进行了试验因子的主效应和互作效应的分析

On the basis of these studies and Liu Heping's Four Stages for Skill Training of Consecutive Interpreting, this thesis offers some suggestions for the improvement of university interpreting teaching in four stages, listening, memorizing, note-taking and re-expression.

在这些理论研究的基础上，依据刘和平提出的交替技能训练的四个阶段，本文从听力与理解、记忆、笔记和表达四个方面对高校提高口译教学提出了一些建议，希望对提高高校口译教学有所帮助。

The standard sample of high pure silicon tetrachloride with certified value of 99.99 % was analyzed. The obtained average determination result was 99.857% after normalization treatment. The relative standard deviation was 0.03%.

对认定值为99.99%高纯四氯化硅标准样品分析，归一化法定量，得到该样品中四氯化硅的测定平均值为99.857%，相对标准偏差为0.03%。

The first 4 scores are for synchronising and the second 4 are for timing and entry into the water.

前面四个评判是同步分，后面四个是对动作和入水进行评判的。

He thought he might secure himself against this in four modes: first, to eliminate the blood lines of all those lords he had despoiled, so as to take that opportunity away from the pope; second, to win over to himself all the gentlemen in Rome, as was said, so as to be able to hold the pope in check with them; third, to make the College of Cardinals as much his as he could; fourth, to acquire so much empire before the pope died that he could resist a first attack on his own.

他认为自己应该采取四项措施以防意外，保障自身的安全：一是对他废黜了的王公贵族，连其子孙都要斩尽杀绝，让新教皇无机可乘；二是把罗马的贵族全部争取过来，这样便可以利用他们制约教皇；三是最大限度地控制枢密院；四是在亚历山大教皇未死之前最大限度地操纵帝国，这样便可以抵御对他发起的攻击。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。