三

Also produce 1000 tons inorgnic fluorides series products per year, They are of good quality and mainly sold abroad.

现有年产3000吨三氟甲苯、8000吨对氯三氟甲苯、5000吨4-氯-3，5-二硝基三氟甲苯和年产1000吨无机氟化盐规模的生产能力，产品生产稳定，质量上乘，并远销国内外。

Then analyzes the properties and the causes of "freeze-out".

第三章阐述美国公司法对封闭式公司股东排挤现象的三种司法救济模式即直接定义模式、股东信义义务模式和合理期望准则模式，介绍其产生及发展完善过程，深入分析比较三种模式的优点及不足。

982 freshers and juniors in universities of different ranks were investigated by drawing form sampling study in Liaoning Province.

通过对辽宁省不同层次的大学982名大一与大三年级学生进行分层整体取样调查，结果显示：（1）大学生心理健康素质在适应和应对风格分量表上的得分大三年级高于大一年级，在归因风格分量上的得分大一年级高于大三年级，年级差异显著；（2）在人际素质、个性素质、认知风格分量表上性别差异显著；（3）大学生心理健康素质在适应、人际素质、动力系统、自我和应对风格分量表上均存在显著的专业差异，艺术类、文史类学生得分高于理工类学生。

According to 3D analysis, it is known that shear transfer between rings are carried out by three ways. First is friction between ring joint faces; Second is dowel effect of circumferential bolts; Third is contact-hold effect of tongue-and-groove.

从三维分析可知，错缝拼装衬砌的环间剪切力传递主要通过三个途径实现，一是环缝处两个环面之间的摩擦；二是纵向连接螺栓的销栓作用；三是环缝凹凸榫的接触咬合作用。

Three dimension and turbulent are common characteristic of fluid flow problem in nature and added free surface for the best familiar fluid-water, such as flood discharge flow around frusta of brake in waterpower project, flow around hull in ship engineering, and so on, all have the three characteristics which are the very important study content and aspects in CFD.

摘要自然界中的流体流动问题一般都具有三维性和湍动性，对于最常见的流体—水则同时还拥有自由表面，水利工程中绕闸墩的泄洪水流、船舶工程中的船体绕流等均具有上述流动的三种特性，这三种特性是计算流体力学领域非常重要的研究内容和方向。

On the basic of above job a mathematical model of simulation turbulent flow with free surface is established and triumphantly applied to numerical computation on 2D spillway and 3D spillway with frusta of brake.

自然界中的流体流动问题一般都具有三维性和湍动性，对于最常见的流体—水则同时还拥有自由表面，水利工程中绕闸墩的泄洪水流、船舶工程中的船体绕流等均具有上述流动的三种特性，这三种特性是计算流体力学领域非常重要的研究内容和方向。

These three heavy identities are three kinds of angle of views that she observes the world, and in her works, also usually body these three kinds of fusions of angle of views.

这三重身份是她观察世界的三种视角，在她的作品中，也往往体现了这三种视角的融合。

The problem of how to correct the profiles of roller gear cam is studied.The function of CMM is studied according to the CMM that is owned by Engineering training center. A method of using CMM to measure surface error of roller gear cam is researched.

结合工程训练中心现有的三坐标测量机设备，仔细研究了三坐标测量机所能实现的测量功能，提出了一种用三坐标测量机测量弧面分度凸轮轮廓面误差的方法。

This paper mainly consists of five parts. The Introduction mainly defines the scope and relative concepts, and covers the present situation of research about it. The first chapter traces the Seeing-off-poetry's cultural origin, classifies its emotion contents and artistic achievements, and differentiates the flows from the base of comprehensive reorganization of the Seeing-off-poetry from pre-Qin to latter-Han Dynasty. The second chapter studies its variations about styles, artistic expressions, and gentries' spirit features. And in this part we also discuss the reasons of Four-word-see-off-poetry's booming and its peculiarities in Jin Dynasty. The third chapter demonstrates the influence on Seeing-off-poetry in the Early and Glorious Ages of Tang Dynasty such as the construction ways, poetry images and emotion styles. The Appendix enumerates all the 465 Seeing-off poems' tittles, authors, their birth and dead time, writing time and sources of quotation one by one, so that all of them can be checked to prepare the investigation.

论文主要有五个部分：&绪论&重在界定魏晋南北朝送别诗的研究范围和相关概念，并对其研究现状作一全面回顾；第一章&送别诗溯源&，在全面整理先秦两汉送别诗的基础上，对《诗经》以来送别诗的文化渊源、情感內容和艺术成就分类概说，辨明其源流；第二章&魏晋南北朝送别诗研究&，从诗体、艺术表达、士人精神风貌三个角度研究这一时期送别诗的演变，并探讨两晋时期四言送别诗的繁盛原因及其特点；第三章&对唐代送别诗影响&，从建构方式、诗歌意象、情感风格三个方面论证魏晋南北朝送别诗对初盛唐送别诗的影响；&附录&部分列出魏晋南北朝送别诗系年一览表，分朝代逐条列举魏晋南北朝465首送别诗的诗题、作者、生卒年、创作时间及其出处，以备查考。

What's more,the three-dimensional velocity,density and pressure distribution of the flow field in the gravity-fed 3-product H.M.cyclone were studied as well,some conclusions were summarized.

通过对无压给料三产品重介质旋流器流场的三维速度、压强、密度和空气柱的数值模拟研究，对无压给料三产品重介质旋流器内的流场有了更深入和细致的了解，得到了几点有意义的结论。

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。