Now the wired directional control system is often used in engineering for its more accurate controlling,which applies to big directiona.
有线控向系统控制精度高,适用于在大、中型定向钻机上进行深、长管道穿越。
For a digraph D,the line digraph L(D) is the one whose vertex set is A(D) and the arcs set are the pairs {(xy,yz)},where xy∈A(D),yz∈A(D).
有向图D的有向线图是以A(D)为顶点集,弧集为{(xy,yz),xy∈A(D),yz∈A(D)}的有向图,用L(D)表示D的有向线图。
In this paper,we show that the second isoperimetric connectivity of strongly connected line digraphs with \$δ≥\$ equals its connectivity.
证明了最小度大于等于2的强连通有向线图的第二等周点连通度等于它的点连通度。
By using the matrix representation of a digraph, some results about the index of convergence and period of a line digraph are obtained.
采用有向图的矩阵表示,得到了线有向图的幂敛指数和周期的有关结果。
By using the matrix representation of a digraph, some results about the index of convergence and period of a line digraph are obtained.
采用有向图的矩阵表示,得到了线有向图的幂敛指数和周期的有关结果.
In computer graphics, a directed line segment.
在计算机制图学中,一种有方向的线段。
Method for Calculating the Active Element Pattern of the Phased Array Antennas
相控阵天线有源单元方向图的计算方法
satellite antenna radiation patter
卫星天线辐射方向图
"Draw a sketch map of the bay indicating its landscape, aspect, approximate positions of the high tide mark and low tide mark and position of the transect line."
绘画一张研究范围的简图,图中应包括地形、样条的位置和方向、高潮线和低潮线位置等有关因素。
Algorithm for Finding All One-way Sub-graph of Simple Digraph;
简单有向图所有单向分图的求解算法
Research on Methods of Adaptive Pattern Synthesis and Its Application in Active Electronic Scan Array;
阵列天线方向图综合方法及其在有源相控阵中的应用
Analysis of Scattering Parameter,Far Field Primary and Crossing Polarizing Radiation Pattern of Three-dimensional Microstrip Patch Antenna by FDTD Method;
时域有限差分方法分析微带天线散射参数和方向图
Real-Coded Genetic Algorithm Synthesis Of Reconfigurable Tripple-Pattern For Linear Antenna Arrays
用遗传算法综合具有三种方向图的可重构阵列天线
A fault diagnosis method based on nonlinear principal component analysis and sign directed graph
基于非线性主元分析和符号有向图的故障诊断方法
Process planning optimization based on genetic algorithm and topological sort algorithm for digraph
基于遗传算法与有向图拓扑排序的工艺路线优化
3-D Line. Line with a 3-D visual effect
三维折线图。带有三维效果的折线图
We shall abbreviate 'directed graph'to digraph.
我们将把“有方向的图”简称为方向图。
a line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass direction.
在地图上示为以同样角度穿过所有子午线的一条线;飞机或船的维持固定的方向航行路径。
Now we can look up and see the lines against a clear blue sky. The picture on the right is much more dynamic because of the strong diagonal lines.
现在我们可以向上看,线条背衬着干净的蓝天。右图因为强有力的斜线显得更富于动感。
Digraphs have a simple pictorial representation.
有向图有简单的图形表示。
A digraph D is unilateral.
有向图d是单连的。
The Study of the Hamiltonian Qualities in Digraph;
有向图Hamilton性质的研究
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