This is done by using a topological sort algorithm on the graph.
这通过图表中的拓扑排序算法实现。
Without discussing them in detail, here are two additional topological themes.
下面提供了两个其他拓扑主题，我们不再对它们进行详细讨论。
ValueBasedHierarchy is used to define a hierarchy on the basis of the topological structure.
ValueBasedHierarchy用于根据拓扑结构定义层次。
The algorithm works because if a vertex has no successors, it must be the last one in the topological ordering.
算法能够执行是因为，如果一个顶点没有后继，那么它肯定是拓扑序列中的最后一个。
We study above problems for fuzzy topological ring of type (QU).
并对(qu)型模糊拓扑环关于上述问题进行研究。
There is a simple way of associating a topological space with a graph.
有一种把一个拓扑空间同一个图联系起来的简单的方式。
The results show that the topological index has good structure-property correlativity.
结果表明，该拓扑指数具有良好的结构-性质相关性。
The topological sorting algorithm works on unconnected graphs as well as connected graphs.
拓扑排序算法既可以用于连通图，也可以用于非连通图。
This is a topological sorting example, the data structure of the students will have a great help!
这是一个拓扑排序的例子，对学数据结构的同学有很大帮助！
The topological structure is one of the key factors affecting the reliability performance of SPS.
船舶电网的拓扑结构是关系船舶电力系统可靠性的关键因素。
The fuzzy uniformization of fuzzy topological ring is an important problem in the fuzzy topological ring theory.
模糊拓扑环的模糊一致化问题是模糊拓扑环理论中的一个重要问题。
Double-loop network (DLN) is an important class of topological structure of the Internet or communication system.
双环网络是计算机互连网络或通讯系统的一类重要拓扑结构。
This paper presents a topological technique for the sensitivity calculation by means of singal flow graphs theory.
本文提出用信号流图理论求灵敏度的一种拓扑方法。
Studies have shown that the Hilbert curve preserves very well the topological information, even better than the Z-ordering.
研究表明，Hilbert曲线可以很好地保存拓扑信息，甚至优于Z顺序曲线。
Spatial relations are categorized into three types of relations, namely topological, directional and distance relations.
在该方法中，首先将空间关系分类为拓扑关系、方向关系和距离关系。
These topological insulators are band insulators with large spin-orbit interactions and exhibit the quantum spin-Hall (QSH) effect.
这些绝缘体是具有强自旋轨道相互作用的能带绝缘体, 并显示出量子自旋霍尔效应.
The method exploits regularities both in the communication phases and in the topological communication structure of a binomial tree.
这一方法不仅利用二项树通信步中的规则性，而且利用了二项树拓扑结构的规则性。
Radial Basis Function Neural Network is a kind of Neural Networks which have simple topological structure and clear learn procedure.
径向基函数神经网络是一种拓扑结构简单、学习过程透明的神经网络模型。
If you need a more esoteric kind of sort routine, you might want to check out the tsort command, which performs a topological sort on a file.
如果需要某种更深奥的排序方法，您可能要查看tsort命令，该命令对文件执行拓扑排序。
Therefore a mesh has four basic characteristics: geometrical property, topological structure, physical property and time-varying property.
因此，网格具有四个基本特征：几何特性、拓扑结构、物理属性和时变性。
Differential topological characteristics of the small signal stability region (SSSR) in power systems are tentatively studied in this paper.
对电力系统小扰动稳定域的微分拓扑学性质进行了初步探讨。
The generation employs space filling curves to preserve the spatial and topological properties (see the Resources section for the H. Sagan book).
这里使用空间填充曲线来保存空间和拓扑属性（请参阅参考资料一节，找到 H.Sagan 撰写的书籍）。
A topological sort is carried out on a directed graph with no cycles. Such a graph is called a directed, acyclic graph, often abbreviated DAG.
拓扑排序必须在无环的有向图中进行。这样的图叫做有向无环图，缩写为DAG。
A social network is constructed based on local telephone call records in a city and the topological characteristics of the network are measured.
根据城市中的电话通话记录建立了一个大型的社会网络，研究了这个网络的有关结构特性。
A social network is constructed based on local telephone call records in a city and the topological characteristics of the network are measured.
根据城市中的电话通话记录建立了一个大型的社会网络，研究了这个网络的有关结构特性。
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