奠定

The four bands can be used either directly as the characteristic bands of in genetic transformation among cultivated forms of Nicotiana tab...

在分子水平上为研究普通烟草种内不同栽培类型间的遗传差异和类型划分奠定了可行性实验基础。

One of the main characteristics is the usage of water for transport of the night soil, which contains the major part of the organic matter and nutrients of the urban wastewater.

目前的城市污水排放模式沿用了欧洲19世纪工业化和城市化进程中所奠定的模式，其重要特征之一是用大量的水作为载体来输送城市污水中富含有机物与营养盐的人粪尿。

It made whole Bayankala Mountain uplift to be continent, and formed NNW arc structure, which was the embryonic of Bayankala Mountain landform.

同时也奠定了巴颜喀拉山地貌雏形—北西西向弧形为主的构造形迹。

It has opened a new way for the diagnosis and therapy of tumours, and also estab- lished the foundation for the carcinogenic mechanism research. In order to study the altered molecular events during laryngeal car- cinogenesis and elucidat the role of oncogenes in laryngeal carci- noma, we examined the Ha-ras and c-myc gene mutation and amplification by the polymerase chain reaction and molecu- lar hybridization technigues respectivly.

癌基因的研究是当前肿瘤领域内的重大课题，正在基础理论和临床医学中进行广泛和深入的研究，癌基因的发现为肿瘤的诊断和治疗开辟了新的途径，同时也为人类开始从分子水平来回答细胞癌变的本质问题，最终认识癌变机制奠定了理论基础。

The design of a nonmental ultrasonic detector was introduced. The detector was based on EP2C20 series FPGA chip,through adding NiosII soft processor and other interfaces to FPGA ,equipped with high precision data collection system and TFT LCD module and so on.The system was constituted.It including ultrasonic eradiating,receive sychronously,audio parameter detecting automatically,data analyse and process,display result timely,data storage and data output circuits.For the developing of imaging,intelligent and automation of ultrasonictesting ,a very good foundation is established by the system.

介绍了非金属超声检测仪的软硬件设计方法该仪器以EP2C20系列FPGA芯片为核心，通过在FPGA中加载NiosII软核处理器和其他外围接口电路，配合高精度数据采集系统TFT液晶显示模块等设计而成该仪器集超声波发射同步接收声参量自动检测数据分析处理结果实时显示数据存储与输出等功能于一身，为数据的进一步分析处理和实现超声检测的图像化智能化自动化奠定了良好的基础

The interpolate algorithms of three-order NURBS curve and double three-orders NURBS surface are presented. The expressions of partial derivative and normal curvature of NURBS surface are derived by the theory of differential geometry. The geometric characteristics of different curvature area of the free-form surfaces are analyzed in detail. All these work lays a theoretical foundation for constructing the cutter location calculating model of free-form surfaces NC machining. 2 On the basis of analyzing the methods of cutter path generation, the standard of evaluating the various methods of cutter path generation is presented. The method of generating cutter path with constant scallop height is presented for the first time.

本文以提高复杂曲面多坐标数控加工精度和加工效率为目的，在对国内外研究现状进行深入分析的基础上，对数控编程中各环节的关键技术问题进行了深入研究，主要内容包括以下几方面： 1 分析了复杂曲面各种造型方法的优缺点，给出了根据各种边界条件所确定自由曲面的NURBS表示方法以及三次NURBS曲线曲面反算算法；用微分几何理论推导了NURBS曲面的偏导矢及法曲率计算表达式；对曲面不同曲率特性区域的几何特征进行了深入分析，为建立复杂曲面的数控加工刀位计算模型奠定了理论基础。

In the modeling of growth macroeconomic rational expectations , using the method of quadratic optimal dynamic programming, the steady state equations of Riccati equations under normal conditions is discussed, which makes a firm basis for the modeling of macroeconomic rational expectations .

针对采用二次最优动态规划建立的宏观增长经济合理预期模型，探讨了Riccati递推方程的稳态方程求取问题，推导出了一般情况下的Riccati稳态方程，为建立合理预期数量经济模型奠定了基础。

WuLaTe Hou Banner, which is located in the norther frontier of our country, is the one in which the economy is mainly made up of animal husbandry since liberation, the Politics, economy and cult ure in the Banner have had some development under the leadership of the Communist Party of China The developments of economy, scientific technologies and society in the Banner were more significant since the 3th Plenary Session of the 11th Central Committee Particularly According to the demand of the general duties ...

乌拉特后旗是祖国北部边疆的一个牧业旗。解放以来在中国共产党的领导下，政治、经济文化都有了一定发展。特别是十一届三中全会以来经济、科技、社会发展的成就更为显著。然而，按照党在新的历史时期提出的总任务和总目标的要求，根据十三大赵紫阳同志的报告中关于经济发展战略的要求，乌拉特后旗还必须动员全旗各条战线、各族人民努力奋斗，加快加深改革，完成本世纪末的奋斗目标。为了这一目标，该旗在战略指导思想上对旗情的分析研究上、具体的工作讨划上都有周密的安排，决心使该旗的经济、科技和社会有较大发展，为二十一世纪经济腾飞奠定牢固的基础。

During the second ten years of Chinese new literature (19281937), novelette grew up due to epochal needs and self-improvement. Not only did the amount of creation increase and a lot of influential fiction appear, but the fiction became mature in ideological content and artistry, and was perfected in its norms of aesthetics. So the novelette saw its first period of prosperity in modem Chinese literature, and laid a solid foundation for later continuous development of novelette creation.

中国新文学发展的第二个十年（1928—1937），中篇小说在时代需要和自身发展中趋于成熟，不仅创作数量明显增多，出现了一批有影响的好作品；而且在思想内容和艺术技巧上都显示出趋于成熟的实绩，并在自身的美学规范上逐步完善；由此就形成了现代文学史上中篇小说创作的第一次繁荣期，并为此后中篇小说创作的持续发展奠定了坚实的基础。

Objective of this part is to culture NSC in vitro, observe its biological property and make bases for further study on differentiation.

NSC的培养扩增是研究的基础，本实验目的在于通过培养了解其生物学特性，为深入研究其体内外分化奠定基础。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。