存在

The results indicated that most majority tourmaline has the filling phenomenon.The filling may assume white or yellow flocculus, blue flash and flow structures inside.Even organics and lead can be found still on the sample which has unnoticeable filling by IR and XRF testing.

结果表明，绝大多数碧玺都存在充填现象，充填物可呈白色絮状物、黄色絮状物、蓝色闪光、流动构造等存在于碧玺内部，有些不明显的碧玺样品，在红外及QUANT'X 型荧光能谱仪下仍然有有机物及Pb峰的存在。

Moreover, frozen restraint between the slate and the underneath frozen soil is an important condition for frost heaving of the slate.

另外 ，渠道边坡衬砌层和其下冻土层之间冻结约束的存在与否是边坡衬砌层会不会受冻胀力的必要条件，若此约束存在，则可能受冻胀力，若此约束不存在，则其不可能受冻胀力。

Structural analysis of PBF2Sugar analysis showed this polysaccharide was composed of fucose,mannose and glucose in a molar ratio of 1.0:2.3:10.7. Methylation analysis showed it contained terminal fucose, 1,3,6 mannose linkage, 1,6-, 1,3,6- and terminal glucose linkage.

甲基化分析结果表明，岩藻糖以端基形式存在，甘露糖以1，3，6-连接方式存在，葡萄糖主要以1，6-和1，3，6-两种方式连接，还有少量的以端基形式存在。

Moreover, this dissertation reveals an essential conclusion: The existence of the state feedback solution of H〓 problem is equivalent to that of the maximinimizing the LQ problem, by the existence of real symmetric stable solution of GARE.

文中从微分Riccati方程解的存在性及其性质的论证出发，最终得到了GARE实对称解存在条件的结论。在§2-4中，揭示了本文研究的maxmin鲁棒最优控制问题与H∞状态反馈解及GARE实对称解的存在性等价这一实质性结论。

In order to investigate the existence conditions of the robust optimal state feedback of uncertain system, we have to study the problem of GARE, that is the solution existence of the following equation PA+A'P+Q-PMP=0, Q=Q', M=M' In chapter 2, using some preliminary results and properties of the Riccati differential equation, we have established the sufficient conditions for the GARE problem.

在讨论不确定性系统LQL方法的状态反馈解的存在性条件时，引出了第二章讨论一般代数Riccati方程解的存在性问题，对一般Riccati方程 PA+A'P+Q-PMP=0，Q=Q'，M=M'第二章中先列举讨论了Q、M为正、负定各种情况下的实对称解的存在条件，然后着重研究了M、Q不定的情形。

Instantaneous motions of the end effector of the typical industrial serial 6-DOF and 5DOF robots are also studied using reciprocal screw theory, The constrained and permitted motions at special configurations are given. Furthermore, the satisfied conditions for the special configurations are discussed, and in the reference coordinate system general expressions of the reciprocal screw and existed motion screw and the subspaces of the permitted rotational axes are obtained under all circumstances at special configurations.

本文中还用反螺旋理论研究了六自由度和五自由度工业机器人的瞬时运动，给出了它们在正常位形和特殊位形下的受约束的运动和存在的运动，以及它们在所有运动参数的不同组合下的反螺旋及存在运动螺旋系的一般表达式和转动轴线存在的子空间。

Two main problems of the main road pedestrian environment have found out: first, the main pedestrian realm of the main roads is incontinuous, lack genius loci and low service level; second, the joint part of the main pedestrian realm, including crosswalks and bus stops, are unsafe and inconvenient.The main causes of those problems from macroscopic viewpoint are analyzed.

提出目前城市干道步行环境存在两大问题：一、以人行道空间为主的"城市干道两侧主体步行空间"，存在空间不连续、缺乏领域感、部分设施服务等级过低等问题；二、以人行横道、公交车站等为主的"进入主体步行空间的交接性步行设施"，存在缺乏安全性和方便性的问题。

In this paper, we just consider the initial-boundary value problems of aclass of two-dimensional nonlinear integro-differential equation, simultaneouslyconsidering the damped term and memory termThe details will go as follows. Firstly, the c...

本文同时考虑耗散项和记忆项等因素，讨论了一类具有记忆项的二维非线性积分微分方程的如下初边值问题具体研究内容如下：首先，文章简单介绍了国内外当前对非线性积分微分方程的研究现状；其次，文章给出了一些重要概念和引理，并对部分符号做了说明；第三，利用Galerkin方法证明了问题(1)-(3)的变形问题弱解的存在唯一性；第四，证明了问题(1)-(3)强解的存在性和能量的指数衰减性；第五，进一步证明了问题(1)-(3)经典解的存在性。

In this paper, we just consider the initial-boundary value problems of aclass of two-dimensional nonlinear integro-differential equation, simultaneouslyconsidering the damped term and memory termThe details will go as follows. Firstly, the current st...

本文同时考虑耗散项和记忆项等因素，讨论了一类具有记忆项的二维非线性积分微分方程的如下初边值问题具体研究内容如下：首先，文章简单介绍了国内外当前对非线性积分微分方程的研究现状；其次，文章给出了一些重要概念和引理，并对部分符号做了说明；第三，利用Galerkin方法证明了问题(1)-(3)的变形问题弱解的存在唯一性；第四，证明了问题(1)-(3)强解的存在性和能量的指数衰减性；第五，进一步证明了问题(1)-(3)经典解的存在性。

Through these images ,the relationships of the images,and their different gradational status,this article aims at expounding the meaning and connotation each image stands for ,there by giving this contentious passage a explanatory analysis.

如果一篇文章存在多个意象，那么不仅意象和意象之间，必然存在着一定的相互联系，而且各意象也必然存在于一定的层次关系之中。鲁迅先生的散文诗《雪

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。