查询词典 lobachevski space

According to that the same type of documents are similar with the statistical features in multidimensional space,the basic assumption that judges this similarity is given,a model based on Euclidean distance spherical space toroidal model and k-spheroid space toroidal model are designed.

依据同类型文件在多维空间中的统计特征值具有相似性的规律，给出了判断其相似性的基本假设，设计了基于欧几里德距离的球体模型及k-球体模型，同时根据文件统计特征值权重的加权欧几里德距离优化两种模型，解决了相似性判断的正确性和效率。

Chang'e-1 creates the seven "firsts" in China's space history: the first to probe the lunar; the first to break through near earth orbit; the first to take pictures for the moon, using stereophotograph to acquire 3-D images; the first to explore elements on the lunar surface; the first to investigate the thickness and distribution of lunar soil, using microwave radiometer; the first to introduce astronomical survey into space instrumentation and command; and the first to use Internet for further space instrumentation and command.

嫦娥一号开创了我国航天史上的七项第一：第一次探测月球；第一次突破地球近地轨道；第一次为月球"画像"，真正用立体相机来获得月球三维影像；第一次探测月球表面元素；第一次利用微波辐射计探测月壤厚度及其分布；第一次在航天器的测控中引入天文测量手段；以及第一次利用国际联网对航天器进行深控。

Parapharyngeal space was divided into two parts by the line from styloid process to pharyngeal recess;preparapharyngeal and retroparapharyngeal space,It was better to show relationship of structures in the retroparapharyngeal space with CT.

但关于咽旁间隙的CT影像解剖，尤其是定量研究资料尚较缺乏，为此笔者在CT图像上对咽旁间隙及咽旁结构进行了观察、测量，以期为此区疾病的影像诊断提供解剖学资料。1 材料和方法在GE980 0型CT机上，沿眶耳线向下连续扫描，层厚 5mm。

Make a change on the original space structure of the crossroad by inserting the active element -- and rearranging and renewing the old function , adding new space stype to the exsiting transport system to bring vigor and vitality into the former non-use space .

通过活性元素--创意之卵的插入，功能的整合与更新，改变城市十字口原有空间结构，将新的空间类型叠加到原有交通体系之上，将原有城市废空间转化为充满生机与活力的城市公共空间

"Aerospace investment" by the China Aerospace Science and Technology Corporation to carry their respective China Academy of Launch Vehicle Technology, China Academy of Space Technology, Shanghai Academy of Space Technology, Xi'an Sunward Aerospace Corporation, Xi'an Aerospace Science and Technology Industrial Estates Corporation, the Beijing Aerospace Satellite Applications Corporation, China Electronics space age, Sichuan Aerospace Industry Corporation, China Academy of Aerospace Aerodynamics and other units, the common injection of one billion yuan to build the establishment of incubators focus on industries, resource integration, strategic acquisitions and investment and financing services.

"航空航天投资由中国航天科技集团公司"，以履行各自的运载火箭技术，中国空间技术，空间技术上海，西安向阳航天工业总公司，西安研究院中国研究院一个航天科技工业公司，北京航天卫星应用总公司，中国航天时代电子公司，四川航天工业总公司，中国航天空气动力等单位，在10.0亿元的共同注资，以建立孵化器的建立重点学院产业资源整合，战略收购，投资和融资服务。

Among them, the space using right of property is divided into superficies of space and easements of space.

其中，物权性质的空间使用权又分为空间地上权和空间役权。

In the third chapter, we study complete minimal submanifolds of locallysymmetric space, and we obtain a pinching theorem about the Ricci curvature of the minimal submanifolds, which generalizes the result of Norio Ejiri\'s from sphere space to locally symmetric space.

第三章节研究局部对称空间中具有正Ricci曲率的完备极小子流形，得到了关于子流形Ricci曲率的一个pinching定理，该定理把Norio Ejiri的结论从外围空间为球空间推广到局部对称空间中。

Qing Jin - a site specific project by Dutch artist Peter Vink specially conceived for Platform China Contemporary Art Institute space A, is an installation which situated in the entrance hall of main space A. In this room the artist decides to show the audience the symmetric quality of this particular space.

请进》是荷兰艺术家彼得·温克专为站台中国A展厅量身打照的艺术项目，整个展览只有一件装置作品，这件作品被设定在A展厅的入口处，艺术家希望展现给观众这个特殊空间的对称特点。

The essential property and developmental course of Euclidean space,symplectic space and bogus symplectic space are studied.

论述欧氏空间、辛空间、伪辛空间的本质属性及演变过程。

When the Hamiltonian system is introduced into the research of dynamic buckling in cylindrical shells, the problem uses dual variables in Symplectic space instead of variables in traditional Euclidean space. The symplectic eigenfunction expansion method gives out an exact solution space. So many problems are solved, which can not find the solution in traditional methods.

将哈密顿体系引入结构的动态屈曲研究中，其意义在于将结构的动态屈曲研究从传统的欧几里得几何空间进入到由原变量和对偶变量组成的辛几何空间之中，从而使辛本征函数展开的直接解析法得以实施，这样就可以求解许多以往半逆凑合法无法求解的问题，并且所得到的解空间是完备的。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。