拓扑结构

The third part is the structural interpretation of topological index in the eighth to tenth chapters.

第三部分是对一些拓扑指数进行了结构解释。

It is an important topological index in Chemistry since Harold Wiener defined it in his paper in 1947 and it is used for the structure of molecule.

自从Harold Wiener在1947年首次提出这一指标概念后，作为一个重要的拓扑指数应用于化学研究中，用来研究分子的结构。

An often-encountered shortcoming of topological index is the lack of interpretation by simple structural and physical chemical concepts.

拓扑指数经常面临的一个重要缺点是缺乏用简单的结构和物理化学的概念来进行解释。

The main aim is to compare topological index with quantum descriptors in the process of prediction of PCBs properties. At the same time, generalized correlation coefficient was attained to describe the diversity characters of two kinds of descriptors.

通过计算拓扑指数与量子化学参数的广义相关系数，比较了两类参数之间的差异性，同时通过对多氯联苯系列的几类重要的物理化学性质的预测，比较了两类结构参数在QSAR研究中的不同作用。

This paper proposed a new structural information topological index Y M, the Y M of binary oxides MO m/2 molecules were calculated.

提出了一个新的结构信息拓扑指数 YM，并用 YM研究了二元氧化物光学碱度的新标度。

Fourthly, making use ofφ-mapping topological current theory, the structure of thevortex has been obtained from the AH model, which provides an effective description tothe brane world cosmic string system.

第四，利用φ-映射拓扑流理论，我们从Abelian Higgs模型中得到了涡旋结构。从而为膜世界宇宙弦系统提供了一种有效的描述方式。

Finally, the electronic structure and the transport properties of the (7,0)-(6,0) SWCNT heterojunction connecting with one pentagon-heptagon pair topological defect have been studied.

对含一个5-7拓扑缺陷对的(7，0)-(6，0)SWCNT异质结的电子结构和输运性能进行了研究。

Finally, on the basis of this paper, design the system architecture and detailed implement the topology modules.

最后，在前面的基础上，本文提出了本网管系统的体系结构，并详细实现了其中的拓扑模块。

With drill hole information and section charts as fundamental data, the author designed the corresponding 3D topological data structure, presented a general process of 3D geological modeling based on sections, constructed the wire frame facial model and corresponding block model of the geological body, finally realized "wire frame-block model" facial-volumetric-mixed modeling.

本文以钻孔信息和剖面图为基础数据，设计了相应的三维拓扑数据结构，提出了基于剖面的三维地质建模流程，建立了地质体的线框面模型及其相应的地质块段体模型，最终实现了"线框-地质块段模型"(Wire Frame-Block Model)面体混合构模。

We find that these two kinds of excitations are generated from the zero points of the different vector order parameter fields defined in terms of the Néel vector 〓.

对于反铁磁凝聚体，我们指出，归因于凝聚体序参量空间第二同伦群的非平庸结构，在凝聚体中存在两类拓扑激发：skyrmion与单极子。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。