四对的

Since China opened its door to the foreign world, Japan has made its run the 4th in the number of projects, contract sum and actual exective sum of the direct investment in China. We can see Japan plays a very important role during the direct investment in China.

我国改革开放以来，日本在对华直接投资的投资项目数、合同金额和实际执行金额均排在前四位，可见日本在对华直接投资中发挥了重要作用。

In the Yue Wangmiao that people is in Hangzhou moment of the excursive before high mountain grave, while recall Yue Fei fights gallant outstanding achievement of gold, always should face high mountain grave to 4 and 4 evil resemble the Tie Zhu of genuflect curse one time.

人们在杭州的岳王庙里岳墓前游览的时候，在追忆岳飞抗金的壮丽业绩的同时，总是要对四个面向岳墓而跪的铁铸四奸像咒骂一番。

Chapter four, from an angle of external regulation, detailedly analyses the unique function of the information disclosure system and securities regulatory institution, with emphasis on the later.

全文分为四章：在第一章分析投资基金、利益冲突、关系人交易及法律控制等相关概念的基础上，后三章则系统地探讨了具体的法律举措，第二章是从信托法上和投资基金法上详细地讨论了忠实义务规则，第三章是从投资基金内部控制的角度，分别探讨了基金持有人会议、托管人、独立董事制度及基金持有人民事诉讼机制，第四章是从外部监管的角度分析了信息披露制度和证券监管机构的独特作用，特别是对后者进行了详细地分析和探讨。

According to the Galois extension theory of the number field,the discriminant of the field and the integral basis theory,the necessary and sufficient condition is attained which is m≡n≡1(mod4),where m and n are two different rational integers without square factors.

四次域是重要的Galois数域之一，该文对四次域Q进行了讨论；利用Galois扩张、域的判别式及整基等一些理论，得出了其具有正规整基的充要条件为m≡n≡1(mod4)(其中m，n是2个不同的无平方因子有理整数)。

This paper introduces the method of producing organotin and the Grignard method of preparing tetrabutyltin.

介绍了有机锡化合物的制备方法及格利雅法制备四丁基锡的原理；对传统的格利雅法合成四丁基锡工艺进行了改进，并报道了其半工业试验的效果

The fourth chapter analyzes the population data of temporary habitant with regression method, according to district and economic difference.

第四章讨论了重庆市外来人口特征，对每个地区计算了吸引指数，指出重庆市应加快经济发展步伐，加大对外来人口的吸引力。

In the fourth chapter, four new complexes of hydrazide of podophyllic acid with transition metals have been prepared. Elemental analysis, molar conductivity, IR,〓 NMR and TG-DTA were used to characterize them. The results show that general formula of the complexes is M〓(n=0 or 2). The ligand is linked through the carbonyl oxygen and the terminal nitrogen of the hydrazide base to the transition metal ions in bidentate mode.

第四章 合成了四种鬼臼酰肼的过渡金属配合物，通过元素分析、摩尔电导、红外光谱、核磁共振氢谱和热重-差热对配合物进行了表征，研究结果表明，配合物的组成为M〓（n=0或2），配体是通过羰基氧和肼基上的端氮以双齿形式与金属离子配位的。

STRIDE and ISSA are primary algorithms in the paper.

在对蛋白质结构进行四个层次的分类中，应用已有的RMSD、Z-Score结构比对算法和论文新提出的ISSA结构比对算法获得分类参数。

British Explosive Research and Development Establishment have investigated the chemical properties and explosive performance of tetrazole derivative(mainly 5-substituted tetrazole derivatives) and complexes, aiming at finding well-behaved initiatory explosives to replace lead azide.

例如1970年以来，美国陆军部的弹道研究实验室以及英国的炸药研究与发展中心曾对四唑化合物的性能及其替代叠氮化铅作新型起爆剂的可能性作了大量研究和论证；他们报导了系列四唑衍生物及其金属配合物的撞击感度实验结果。

Based on specific requirement for the top-coal caving mining to the four-bar linkage ,a design method of the four-bar linkage is put forward in the paper in which the least difference function between the lemniscate locus and the power function curve is used as the main objective function.

基于综放工艺对支架四连杆机构的特殊要求，首次提出以双纽线与幂函数曲线之差值最小作为主要目标函数的数学模型，并在此基础上应用VisualBasic5 0编制了四连杆机构的优化设计程序，可以同时实现优化参数显示与优化结果的动态显

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。