柏林电网为环网结构，而巴黎电网为辐射型网络。
BERLIN's network is made up of loops or rings, whereas that of PARIS has a radial structure.
本文首先深入研究了单端口环网结构上全交换操作的实现算法。
First of all, this dissertation extensively studied the algorithms for complete exchange on single-port torus.
在联通的干线网上，原有的SDH环网结构已经不能满足当前的容量要求，必须改造成ason网络，特别是中东部地区。
Over Unicom's backbone network, original SDH loop network architecture already fails to meet present capacity requirement, which must be transformed into ASON, especially for the central-east regions.
其次，电力网络的典型网络结构有环网、放射型、单端供电型、双端供电型等形式。
Secondly the power network's the typical feature are loop structure , radial type, supply fed at one end and supply fed at two ends.
剖析绿地系统规划中存在的问题和矛盾，提出城市绿地系统应该采用环网式的布局结构，使城市生态系统达到相对的稳定，使新建绿地与原有绿地能很好地衔接起来。
In order to analyze the problems and contradictions of green space system planning in Changchun, I suggest the urban green space system should adopt the layout structure of ring and radial.
通过对当前工业控制系统的研究，结合工业控制现场的实际情况，设计了具有双冗余环结构的现场以太网结构，能够在较短时间内完成故障探测和修复。
Through the study of current industrial control system and the actual status of industrial control field, design an Ethernet structure used in industrial field with double redundancy ring.
对肋环型局部双层球面网壳结构进行了稳定性分析。
Analysis of stability behaviors of partial double-layer cable dome is done.
鉴于同步数字体系SDH环形网络结构的巨大成功，WDM环形网络必定首先实用化、商用化，本文着重对各种保护恢复机制的自愈环网进行了分析与比较。
Whereas the vast success of SDH networks, it is WDM rings to be a fact firstly. Some kinds of WDMself-healing rings are discussed and compared.
环网的瞬交流动计算问题较为复杂，需要求解高阶非线性方程组，对于复杂的网状结构，系统的自动识别或标记相当麻烦。
The calculation of the system is complex, because of solving high haw equation group. It is also a trouble to sign and identify for the equation group.
提出了一种以波长为标签的新型全光变长分组交换环网的体系结构、网络节点的光分组数据包收发模型，以及防止光分组冲突的多令牌协议。
With the specific features of better communication predictability of the timing token protocol, a formalized analysis model for the predictability has been developed.
分析表明：对带缺口的肋环型单层网壳，增加斜杆对结构性能有很大的改善，用钢量反而降低；
The results show that: it has good improvement when some pole in the shell, at same time, it reduced the investment;
分析表明：对带缺口的肋环型单层网壳，增加斜杆对结构性能有很大的改善，用钢量反而降低；
The results show that: it has good improvement when some pole in the shell, at same time, it reduced the investment;
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