对...进行研究

According to the wheel-axle production line project of Ji" nan locomotive and rolling stock plant, this dissertation put forward "Designing of wheel-axle foundation production line and management of wheel-axle information and mainly carried on following several aspect works: According to current new technique of the domestic and international wheel-axle assembling is researched, and combining present produce condition, we have designed the machining and assembling product line of axle and wheel and non axle box rolling bearing assembling product line.

根据济南机车车辆厂轮轴工艺线建设项目，本文提出了"货车轮轴基础工艺线设计及轮轴信息化管理"研究课题，并主要进行了以下几方面工作：通过对目前国内外轮轴加工组装的新技术新工艺进行研究，结合工厂轮轴生产现状，对货车轮轴生产线进行了工艺方案设计。

Aiming at the problems existed in the traditional experimental study and analytic methods in theory while the study was underway by the high density baler directly in laboratory, computer analysis and simulation on compressing hay in high density baler are accomplished according to the technology idea in modem design theory. The virtual prototype technology is introduced in the research.

针对在试验室条件下直接利用高密度压捆机对牧草高密度压缩过程进行研究时，传统的试验研究和理论分析方法存在的问题，本文根据现代设计理论中提出的技术思想，对牧草的高密度压捆过程进行了计算机分析与仿真研究。

By the analysis of Euler\'s three earlier papers on the calculus of variations and that of his mistake on the fundamental principle,and the comparison with Euler\'s and his pioneers\' solutions,the refinement of Euler\'s two core achievements,i.e., fundamental equation and isoperimetric rule,is explained.

通过对欧拉与伯努利兄弟和泰勒等人的解法进行比较和分析，揭示了欧拉对变分法一般性研究的背景、切入点、思想来源和演变；通过对欧拉所犯错误的原因及其影响进行深入分析，指出《技巧》一书并不仅仅是欧拉对早期研究的系统总结和改进，还包含着某种突破和变革。4。

To improve the yield and quality of wheat is an important project to breeder with genetic method. Wild emmer (Triticum. Dicoccoides Kom), as a close species to common wheat, has many good characteristics which can be used to improve common wheat (. T. aestivum L) and is precious material in wheat evalution.

野生二粒小麦(Triticum.dicoccoides Kom)作为与普通小麦(T.aestivum L)亲缘关系较近的一个种，具有许多优良的特性，在小麦的遗传改良中占据着重要的位置，同时，野生二粒小麦是也是研究普通小麦遗传进化的珍贵材料本研究运用SSR分子标记方法对野生二粒小麦与普通小麦的A、B染色体组的同源性进行研究；同时，为了探讨野生二粒小麦的耐盐性能否应用在普通小麦的遗传改良中，采用水培法对从以色列引进的93份野生二粒小麦的耐盐性进行了初步探讨，为普通小麦的遗传改良提供实验依据。

In this chapter, historical background of the study was established and concept of Qin Culture was defined. The history and present situation of study of Qin Culture were summarized, the purpose and explanation theory of the paper was explained. It was pointed out that the changes in both basic social organization and constitution of ruling class during the transition from the system of enfeoffment to the system of empire in ancient China could be reflected in archaeological materials. It is just from the point of view of the changes in both basic organization and constitution of ruling class that the paper is going to examine and explain state systems of ancient China by archaeology.

建立本文研究的史学背景，界定秦文化，对秦文化研究的历史和现状进行了总结，并对本文研究的目的及解释理论进行了说明，提出在中国古代国家制度从封国向帝国的转变过程中，社会基本组织和统治集团成员这两方面的变化可以从考古资料上反映出来。

Bezier and NURBS are chosen as the fundamental method to achieve surface reconstruction on the basis of fundamental theory of sculpture surface reconstruction. Then the fitting method of Bezier and NURBS surface reconstruction is given after the reconstruction algorism is discussed.

作者研究了复杂曲面重建的基本理论，选择Bézier和NURBS作为曲面重建的基本方法，同时对曲面重建的算法进行研究，给出Bézier和NURBS曲面拟合的不同方法，并对求交、拼接和光顺等方法进行了深入研究。

The glass and crystalline glass-solders of Li2O-ZnO-SiO2 system were prepared by conventional melt technology. The various factors effecting on glass ceramics and glass were investigated,which include glass chemical composition and heat-treatment and so on. And then by means of XRD, DTA, IR and SEM, the structure and properties of the glass and glass-ceramic were studied. The coefficient of linear expansion , transform temperature and soft temperature wer measured. And then the factors that effect the mechanical strength of glass-ceramic were discussed and the fluxion property was determined and the crystallization course and mechanism were discussed, which can provide certain therial reference value for practice producing and glass seals to glass, ceramics and metal.

用高温熔融法制备了Li_2O-ZnO-SiO_2系统玻璃及其结晶型玻璃焊料，探讨了各种因素(包括玻璃组成、热处理制度等)对微晶玻璃的结构和性能的影响；利用X射线衍射分析、DTA、红外光谱分析以及扫描电镜等现代测试手段，对玻璃的结构与性能进行研究，测定了玻璃及微晶玻璃的线膨胀系数、转变温度和软化温度，同时对影响微晶玻璃的强度的因素进行了探讨，并对该体系玻璃的流散性进行了测定，对它的析晶过程和析晶机理进行探讨，为实际生产和与玻璃、陶瓷及金属封接提供了一定的理论参考价值。

On the basis of summarizing the current position and tendency of steel processing and delivery center, the paper researches its theoretical sumup, expounds the necessity, goal and orientation for Laiwu steel to build steel processing and delivery center; and valuates the feasibility from such fields as market needs, scale, address choice, employment, investment estimate and economic benefit valuation.

本文对可行性研究进行了理论概述，在总结钢材加工配送中心发展现状及趋势的基础上，对莱钢建设钢材加工配送中心的必要性、目标定位进行了论述，并从市场需求、建设规模、厂址选择、人员配置、投资估算以及经济效益评价等方面对莱钢建设钢材加工配送中心项目进行了可行性研究。

Among the four relations of study for system design standard, it is suggested the focus is the relations between 1500V DC contact rail and human safety.

在直流1500V接触轨系统的&四大环节&研究中，建议重点对系统设计标准及产品制造标准进行研究；在系统设计标准的&四大关系&研究中，建议重点对1500V接触轨与人身安全防护关系进行研究。

In order to make these silver paste successfully used in commercial, a clear understanding is required for the complex relation between different parameters such as particles size, solid volume fraction, packing density on suspension printing and deformation and the mechanism of silver powder sintering shrinkage and the inorganic adhesive effect under the batch manufacture condition.The main emphasis of our researches was to improve the silver paste properties by developing a reliable, screen-printing paste suitable for fine lines and lower sintering porosity and good interface between thick film and glass substrate.

为开发电学性能稳定、高导电率、具有良好细线印刷性能及优良附着性的高性能电子浆料，本研究着眼于对影响参数进行详细剖析，找到关键控制参数，通过研究微观结构与粉末参数的对应关系，找到如何能制备出具有致密的厚膜结构与较低的孔隙率，并且其浆体与有机载体的界面区也要有明显的改善的电子浆体；同时对批量生产的银粉的形态与粉末烧结反应的收缩现象，无铅玻璃体系对银膜致密化等过程进行研究，获得致密高导的无铅银浆料。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。