空间

Research makes clear as a result:(1) red east the medium city that city regards a model as, its interior person ranks an environment already dissimilation, showing an apparent space to divide person of different trend;(2) to reside environmental space to divide the general trend of different is edge duck line of green river bank shows sector landwards to pursue course periphery of degressive;(3) sector -- the person of northwest ministry area occupies environmental space, be in local the sub core place that forms little scope.

探究结果表明：(1)丹东市作为典型的中等城市，其内部人居环境已经异化，显现出明显的空间分异趋向；(2)人居环境空间分异的总趋向是沿鸭绿江岸线向陆地呈扇形逐级递减；(3)扇形外围——西北部地区的人居环境空间分异打破逐级递减和平行扩散的规律，在局部形成小范围的次级核心点。

Space optical system, especially space infrared optical system, cryogenic optical system and some huge space-based telescopes, all work in the environment where there is strong radiation (such as Sun etc.) out of the field of the system. Because of diffraction of the entrance pupil and diffuse scatter of all inner surfaces, the strong stray radiation will reach the detector of the system.

空间光学系统，特别是空间红外光学系统、低温光学系统以及某些大型空间望远镜，都工作在系统视场外有强烈辐射源的&恶劣&环境中，这些强烈杂光辐射经过光学系统孔径的衍射，以及结构与光学件表面的散射，到达系统像面形成杂光。

Only with such characteristics, the movement equations can be expressed as matrices, and the idea of transforming the movement equations to the simplest form through a nonlinear transformation can be realized;(2) The form of Zi =Yi + YTH2i Y + Y7H3i Y(2)+ Y(2)T H4i Y(2)+ YTH5i Y(3) is adhibited in the nonlinear transformation, so that the multivalued problem caused by the nonlinear transformation is avoided, and the higher order transformation can be taken next;(3) The fourth order nonlinear transformation matrices H21,H31,H41 and H51 are derived, by which the original movement equations of electric power system is transformed to Jodan form in Z space;(4) By use of the fourth order nonlinear transformation, the approximate expression of the stability boundary is obtained, in Z space it is Z1= 0,in Y space it is Y1 + YTH21 Y + YTH31 Y(2)-i- Y(2) TH41 Y(2)+YTH51 Y(3)= 0;(5) The criterion used in this paper to judge whether the system critical unstable is simple and quick;(6) The method used in this paper is a direct method, and no need to construct an energy function.

正是由 于电力系统的运动方程具有这样的特性，才能写成矩阵的形式，通过非线性变换将电力系统的运动方程变换为最简单的线性形式的思想才能得以实现；（2）将通常运用于电力系统暂态稳定性分析的Normal Form变换的形式由 Yi＝ Zi＋ ZTh2riZ变形为 Zi＝ Yi＋YTH2iY＋YTH3iY（2）＋Y（2）TH4iY（2）＋YTH5iY（3），从而使得在对持续故障轨线实施同样的非线性变换以确定临界切除时间时，避免了非线性变换带来的多值性的问题，而只有在没有多值性问题的困扰下，才能采用较高阶的变换：（3）推导出了将原始电力系统系统的运动方程变换到Z空间的约当形式的非线性变换矩阵H21、H31、H41、HS1：（4）在运用四阶了「线性变换的情况下，给出了受扰动后系统的稳定边界的近似的解析表达，在Z空间为Z1=0，在y空间为： Y1+YTH21Y+YTH31Y(2)+Y(2)TH41Y(2)+YTH51Y(3)=0 （5）确定临界失稳的判据简单、快捷：对于一个复杂的电力系统，其稳定边界是相当复杂的一个高维曲面，即便是已知系统稳定边界的解析表达，要求出系统持续故障轨线何时与这一高维曲面相交，在数学上几乎是不可能实现的。

The method firstly organizes support vectors in clusters in feature space, and then,it finds the pre-images of the cluster centroids in feature space to construct a reduced vector set.

此方法首先在特征空间中对支持向量进行聚类，然后寻找特征空间中的聚类中心在输入空间中的原像以形成约简向量集。

Jin-Quan Chen How to describe the collective states in terms of fermions degree of freedom is a both interesting and challenging problem in nuclear structure theory.

对于中重核，一种有效的处理的方法就是将其庞大的组态空间截断为一个子空间，然后在此子空间中进行壳模型计算。

In dealing with the form and structure, I have give much attention to the flowing interaction between the inner and outer spaces in order to leave viewers a space for their imagination. As for the textures and surface effects, I have tried my best to retain and present the marks of clay and fire to express my complicated feelings and experiences in an abstract form of space full of great vicissitudes and profundity. In the contemporary civilized society, I have cherished such complicated feelings towards the Chinese culture, being yearning, but perplexed, sweet and bitter, intimate and remote.

在形体形态处理上，我注意内外空间的穿插流动，留给观众以想象空间，在表面肌理效果的把握上，我尽最大可能地保持或流露泥痕火迹，以一种富有沧桑感、深邃感的抽象空间形式，表达我在现代文明条件下对中国文化的那种既神往又困惑；既温馨又苦涩；既亲近又幽远的复杂情感体验。

In the third chapter,We study some geometric properties and spectral propertiesof the Jacobi operator on a solvable extension G of Heisenberg groups H.In the firstsection,we give the definition of G and some fundamental geometric properties on G.Inthe second section,we discuss the Integrability of certain subbundles and the geometricstructure of the induced foliations in case of integrability.In the third section,we studythe spectral properties of the Jacobi operator of G.

可解李群与类对称空间亦密切相关，Damcek-Ricci空间即是广义Heisenberg的一可解扩张李群，在第三章中，我们构造且研究了Heisenberg群的一可解扩张李群G的几何性质，第一节讨论了G的曲率，李指数映射，整体坐标等基本几何性质；第二章研究了TG的某些子丛的可积性及可积时诱导叶片的几何结构；第三节给出了G的Jacobi算子的特征值和相应的特征子空间。

Frame divide into for space continuity, space construction and space coordination 3 parts of view of place of order.

框架分为空间秩序的延续、空间场所的营造以及空间景观的协调三部分。

Outbreak is a space shooter game similar to Galaxian/Galaga clones, this shooter features stunning 16-bit graphics, seven music themes and randomly generated pictures of space with more than 100 REAL space objects.

爆发是一个空间射击游戏类似galaxian /& Galaga &无性系，这射击游戏具有极好的16位图形， 7音乐的主题和随机生成的图片空间，与100多个真正的空间物体。

In the cylinder this expansion space is provided by the vapor space or head space.

在钢瓶内，这种膨胀空间由蒸气空间或排出空间提供。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。