查询词典 back space

"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。

And the solutions of arbitrary time-space elastic force equations of time-space variable system multi-linear vectors all are corresponding constant modulus multi-linear vectors, their time-space moving regular are: only change their directions but do not change their moduluses.

而任何时空可变系多线矢的时空弹性力方程的"解"，都是相应的"常模长多线矢"，它在时空的运动规律是：仅改变方向，不改变"模长"。

Results The proximal of the thenar space is close, the distal of this space open to 1st web space, and continuously to...

掌中间隙的近端与前臂屈肌后间隙相通，远端分为3个小间隙，经第2，3，4指蹼间隙通向手背的间隙。

Based on the analysis of the affected extent of the neutral-point potential by every space vector on all kinds of voltage and current conditions the concept named neutral point control grade was proposed for the first time in this paper. The calculation formulas of NPCG were presented as well. Based on NPCG, a novel modulation scheme called optimized 3D space vector modulation (O3DSVM) scheme was proposed in a-b-0 coordinates based on the translation principle of axes, by which the space vectors with higher NPCG values are selected to synthesize the object vector to suppress the unbalance of the neutral-point potential.

该文通过对各种电流电压状态下每个三维空间矢量对直流中点电位的影响进行分析，提出了"中点控制度"(neutral-point control grades，NPCG)的概念，并给出了NPCG的计算公式；基于NPCG，在a-b-0坐标系下提出一种基于坐标平移原理的新型"三维矢量优化选择调制策略"(optimized 3D space vector modulation，O3DSVM)，该调制策略能优化选择NPCG值较高的矢量以合成目标矢量，从而达到最大程度控制直流中点电位偏移的目的。

The numerical calculation shows that the space distibution of the electromagnetic field in each sub-micro-layer changes with the varing transmission depth in the relief grating, the space distribution in each sub-micro-layer is uniformer than that in isotropic grating and the optical parameters of the anisotropic relief grating and the incident beam have a large impact on the space distribution of the electromagnetic field in relief grating and so on.

数值计算表明，光波场光强的空间分布随透射深度的变化而变化，各向异性介质光栅体内光波场的空间分布相对各向同性介质要均匀，光栅材料的性质参数和光束的入射参数对光波场光强的空间分布有较大的影响等。

Objective To investigate the relationship between ovum fertilization rate and sperm morphology, acrosome reaction in IVF and to explore the influence of parameters of sperm on fertilization rate.

目的 研究体外受精(in vitro fertilization，IVF)中精子形态、顶体反应与卵子受精率之间的关系，分析精子各参数在IVF受精率方面的参考意义。

A: I hear Mr. White wants to run for the Presidency!

我听说怀特先生要参加总统竞选！