Trapezoidal no volume! It is a planar graph!
梯形没有体积！它是一个平面图形！
Using this method can be based on signal spectral analysis method of fault diagnosis into a planar graph recognition.
利用该方法可以将基于信号频谱分析的故障诊断方法转化为平面图形的识别。
Secondly, we investigate the list coloring of planar graphs, and give a su? Cientcondition for a planar graph being 3-choosable.
其次，文章研究了平面图的列表着色问题，给出了平面图3 -可选的一个充分条件。
In this paper, Euler's formula and Handshaking lemma is used to obtain the face chromatic number of a planar graph by solving equations.
本文在前人研究的面着色问题基础上，运用欧拉公式和握手定理通过解方程组得到连通平面图的面色数。
Some upper bounds of the edge number for two class planar graphs are given. Some sufficient conditions for a planar graph to be class 1 are obtained through these bounds of edge number.
给出了平面图为第一类图的边数的一些上界，并给出了平面图为第一类图的一些充分条件。
This paper introduced a bond graph method for the dynamical static force analysis of planar elastic linkage, and presented a bond graph model of this linkage.
本文介绍了平面弹性连杆机构动态静力分析的键合图法。给出了平面弹性连杆机构的键合图模型。
This paper presents an algorithm for solving a complete monotonic chain set in the planar straight line graph g.
本文提出求平面直线图完全单调链集的一种算法。
This paper puts forward a kind of method about type synthesis of the one dof planar closed chains mechanisms, that is , "type synthesis by planar graph".
提出了一种关于自由度平面闭链机构的构型方法，即“平面图形构造方法”。
In essence, 3d ventilation network graph is a 'figurative' ventilation network graph, and it surpasses the technical level of the conventional planar network graph.
从本质上说，3d风网图表达的是“具象”的通风网络图，它超越了传统平面网络图的技术层面。
In essence, 3d ventilation network graph is a 'figurative' ventilation network graph, and it surpasses the technical level of the conventional planar network graph.
从本质上说，3d风网图表达的是“具象”的通风网络图，它超越了传统平面网络图的技术层面。
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