拓扑地

We study the recursive structure of the twisted-cube connected network sufficiently, and prove that the twisted-cube connected network is an n regular graph with connectivity n: point out that the twisted-cube connected network is a cube-free network, which is an essential distinction with the hypercube and other variations of the hypercube; prove that the diameter of n dimensional twisted-cube connected network is [ (n+1)/2] , which is almost the half of hypercube's.

首先对其结构的递归性进行充分地研究，证明它是连通度为n的n正则图；指出扭立方体连接网络无立方体子图，这是扭立方体连接网络与超立方体及其其它变种的本质差别；证明了n维扭立方体连接网络的直径为[（n+1）/2]，它几乎是超立方体直径的一半；最后，给出超立方体及其变种的等价定义，并对它们的结构递归性、网络参数和拓扑性质等作了简单的分析、综合和比较。

Experimental simulation results demonstrate that dynamic probabilistic particle swarm optimization with the varying neighborhood topology can solve complex optimization problems and escape from local optimal solutions efficiently.

实验结果表明，基于多簇结构的可变拓扑策略在求解复杂优化问题时优势明显，可以有效地避免算法陷入局部最优，在保证收敛速度的同时增强了算法的全局搜索能力。

It is very important to effectively found that the network topology for network management and network research.

有效地发现网络的拓扑，对网络管理和网络研究有着重要的意义。

With the development of IPv6 networks, it is challenging to measure its topology for network management.

随着IPv6网络的不断发展，如何有效地获取IPv6网络的拓扑结构成为网络管理的一项重要内容。

Network topology models are widely used in network research.

网络拓扑模型广泛地应用于网络研究中。

The results show that this system can discover the network topology quickly and exactly.

实验结果表明该算法可以快速准确地发现网络拓扑结构。

In order to address these problems, it is necessary to be able to dynamically design and record the topology of a network.

为了解决这个问题，有必要能够动态地设计和记录网络的拓扑结构。

Firstly, this paper analyzes and summarizes the research situation of resonant soft-switching technique and main topologies. And it indicates the main advantages and disadvantages. Then it pays more attention to analyze the parallel resonant DC link circuit theory and operating modes. It also analyzes how the resonant circuit realizes the resonant process. This paper also simplifies the control part design of the parallel resonant DC link soft-switching inverter by DSP.

本文首先对谐振软开关技术的研究现状和各种主要的拓扑结构进行了分析、综合、总结，指出了各自的优缺点；着重对并联谐振直流环电路的工作原理、电路工作模式、软开关实现机理及谐振参数的确定等进行了深入详尽的分析；利用DSP的灵活调节特点，有效地简化了并联谐振直流环软开关逆变系统的控制环节设计。

The application of information share and WWW method in NCCAD is studied to ingeniously present and achieve the DC model of engineering CAD information based on Object-Oriented and drawing hyperlink, which maps the restrict and topology of product information to intra-conjunction and inter-hyperlink of DC Object .

研究信息共享和WWW模式在网络CAD环境中的应用，基于面向对象技术和图形链接技术创造性地提出并实现了工程CAD信息的图元模型，将产品信息模型的约束与拓扑关系映射为图元对象内部关联和外部链接两个层次。

In the landscape picture, the disappearance of a flux line or other change of topology is a quantum jump over a mountain ridge into a lower valley.

在地景图像里，一条通量线的消失或其他拓扑的改变，就代表一个翻越山脊进入低谷的量子跃迁。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。