性质

Based on the molecular topological theory, a modified group dyeing indexL is introduced. It is used in the study of refractive index of the ketones and ethers. Relationship between the refractive index and molecular structure of 57 ketones and ethers is studied by using quantitative structure-property relationship technique. The reasonable molecular modeling equations are obtained by multiple regression for the prediction of the refractive index of ketones and ethers.

在分子拓扑理论的基础上，提出了一个修正的基团染色指数L，运用定量结构－性质相关技术研究了57种酮类和醚类化合物分子的折射率与分子结构间的定量关系；通过多元回归的方法建立了L与折射率的定量结构－性质相关模型。

In Chapter 2, we recapitulate some fundamental definitions and propositions of topological degrees and some fundamental results about the computation of topological degrees;in Chapter 3, applying relative definitions and propositions of topological degrees, we establish product formulae of topological degrees in product space, in particular, the product formula of fixed point index on product cone, moreover, combining with the fundamental propositions and the computation of fixed point index, we obtain some fixed point theorems on product cone.

为此，在第二章中，我们给出了拓扑度的基本概念和性质以及拓扑度计算方面的基本结果；在第三章中，运用拓扑度的有关知识，我们建立了乘积空间中各类映射的拓扑度的乘积公式，特别是乘积锥上的紧连续映射的不动点指数的乘积公式，进一步，结合不动点指数的基本性质和不动点指数计算方面的基本结果，得到了乘积锥上的若干不动点定理。

Connectivity is one of the basic properties of topological space. R-strong connectivity is stronger than connectivity, and it has some good qualities.

连通性是拓扑空间的基本性质，R-强连通性比连通性要强，它具有一些良好的性质。

The classification of land registration system is the registration of deed and registration of title, which includes the Torrens system.

土地登记制度最通常的分类就是权利登记制和契约登记制，法律上讲，两者最基本的区别就是"契约登记制关注法律事实的登记，而权利登记制关注事实的法律后果的登记"；土地登记并非一个单纯的私法或公法行为，而是具有双重性质的，即土地登记兼具私法行为与公法行为的双重性质；土地登记制度不仅有平等主体的私权关系，而且有纵向的行政关系，其中贯穿着个人目标与国家目标的双重价值；土地登记的效力包括：决定权利变动、权利正确性推定、善意保护、监督管理和警示效力；一个完整统一的土地登记制度是富有效益的，包括个人效益、公共管理效益、社会效益和经济效益。

The character of the transition matrix is more illuminated when give the example to deep the understand of it .

同时在实际例子中对转移矩阵的各种性质给予论证说明，进1步加深对其性质的理解。

For one-dimensional mesoscopic metal rings system in external magnetic field, supposing the system has a symmetry under translation in charge space, the quantum current relation in mesoscopic metal rings is given by solving the eigenvalue equation of the current, the property of quantum current have been investigated and analysed.

针对处于外磁场中的一维介观环系统，假设在电荷空间中具有变换的对称性，通过求解电流算符的本征值方程，给出系统中的量子电流关系，分析和研究一维介观金属环中量子电流的性质。结果表明，量子电流不仅与外磁场、介观金属环参数有关，而且还明显地依赖于电荷的量子化性质

Based on a comparative method, this article looks back on the origin and development of the condominium system, comes to the conclusion through analyzing and comparing different theories that the condominium concept of trialism is more scientific and reasonable. Based on the above discussion, conducts further study on its properties and characters, and points out that condominium is a kind of compound ownership including exclusive right,common right and member's right ,which has many differences from traditional real estate ownership.

本文运用比较研究方法，回顾了建筑物区分所有权制度的起源和发展，通过对各种学说的分析，认为以三元论说界定建筑物区分所有权较为科学合理，在此基础上，探讨了其性质和特征，提出建筑物区分所有权的性质是一种包括专有权、共有权和成员权的复合性物权，其与传统不动产所有权存在诸多差异。

While ordinary individuals are qualitatively complex, a trope is qualitatively simple, and is, in fact, a particular property instance.

而通常的殊相个体都是性质上复合的，但一个殊质在性质上是简单的，事实上就是一个具体属性的实例。

It is found that,through sliding zone soil mineral component and water-soil interaction analysis,the principle reason of landslide is that coal measure strata turves soil contains certain proportional hydrophilic mineral ,and its mechanical index will fall greatly after water-soil interaction.

以京珠高速粤境北段k18+170~k18+225滑坡为例，研究了煤系地层滑坡机理，通过对滑动带土的矿物组成及其物理力学性质分析，发现该类边坡滑坡的主要原因是煤系地层中的泥炭土含有一定比例的亲水矿物，在水的作用下力学性质发生大幅度降低。

The nature of the acceleration unit-impulse response function of unbounded medium tending to vary linearly is proved by means of asymptotic analysis. Thus, the acceleration unit-impulse response function can be regarded as the summation of a linear function and a residual part which converges to zero. Based on this decomposition, two FE-SBFE coupling procedures are presented based on system realization and truncation integral technique respectively.

本文系统研究了相互作用力-运动关系的位移表达、速度表达和加速度表达，通过比较位移、速度和加速度单位脉冲响应函数的SBFE求解过程，确定采用相互作用力的加速度表达；通过渐近分析证明了无限地基加速度单位脉冲响应函数具有随时间延长而趋于线性变化的性质；利用这一性质将加速度单位脉冲响应函数分解为一个线性函数和一个衰减到零的残余函数的和，以此为起点发展出两种FE-SBFE时域耦合方法：基于系统实现的FE-SBFE时域耦合方法和基于截断卷积的FE-SBFE时域耦合方法。

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。