This paper discusses some properties of the Self-dual graph and simple self-dual graph.
本文论述了自对偶图和简单自对偶图的一些性质。
This paper presents a definition of imitative dual graph of outplane graphs, and proves the structural theorem on outplane graphs by using the nature of imitative dual graph of outplane graphs.
给出了外平面图的拟对偶图的定义，并利用拟对偶图的性质证明了外平面图的结构定理。
The interdependent relationship between the Hamiltonian cycle and 4-colouring of the planar graph in the dual have discussed.
阐明了平图中的H圈与对偶图顶点四着色的依存关系。
The 'time scale network' was worked out by building the dual-code network plan into the time coordinate, which can make the network graph more readable.
将双代号网络计划放在时间坐标里，编制成“时标网络”，使网络图的识读变得容易。
After analyzing the relations between graph matrices of dual electrical network a method of plotting the latter which is different from usual geometrically drawing method is presented in this paper.
本文从互为对偶的电网络的线图矩阵间关系的分析，得出求作对偶电网络的矩阵法。它异于常用的几何作图法。
This paper presents double graph dual-beam speckle interferometry, and the experiment shows an agreeable result with the theoretical analysis.
作者在本文中首次提出双片双光束散斑干涉法，并成功地进行了实验。
A solution of linear circuit based on Kirchhoff"s rule and its dual rule is presented. By means of this solution, analysis are required to the structure of graph, no any circuit equations are needed."
提出一个建立在基尔霍夫定则及其对偶定则基础之上的线性电路解法，只需对网络图的结构进行分析，不需列写任何电路方程式。
The device also features a pressure monitor graph, improved syringe design, syringe autoload, and the ability to upgrade from single to dual injections.
该设备同时还具有如下特点：压力监测图、设计改良过的注射器、自动加药注射、以及从单次注射升级至两次注射的能力。
The device also features a pressure monitor graph, improved syringe design, syringe autoload, and the ability to upgrade from single to dual injections.
该设备同时还具有如下特点：压力监测图、设计改良过的注射器、自动加药注射、以及从单次注射升级至两次注射的能力。
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