查询词典 area graph

The results show: 1 In the rapid urbanization, the human activities in Beijing area are becoming stronger and stronger with the accelerating trend; 2 The rapid expansion of the urban land by encroaching the cultivated land in the plain area and the land use adjustment within the no-urban area are the main characteristics of the land use/cover change in Beijing; 3 The land use/cover from the center city, the fringe area to the exurb area show the obvious character of the spatial-temporal grads change with the most strong changes taking place in the fringe area.

发现：1伴随着快速的城市化进程，北京地区人类活动对区域整体的改造和影响正在深入，并且表现出加速趋势；2城镇用地通过占用耕地在平原区的快速扩展和非城镇用地内部的结构调整是北京地区土地利用/覆盖变化的基本特征。3从北京城市核心区经城乡过渡区到郊区，土地利用/覆盖变化表现出明显空间分布和时间变化上的梯度性，其中城乡过渡区是北京地区土地利用/覆盖变化最明显、也是最剧烈的区域(第4章)。

Organic matter, pH, cation exchange capacity and contents of potassium, sodium, magnesium, copper, zinc, manganese, cobalt, iron, selenium, iodin and fluorin were determined of rock and soil samples from six main geological background areas within the main ruminant production base, in Yunnan Province, China. Results showed: 1 the red earth area of Paleozoic basalt and red earth area of carbonate the highest; the yellow-red earth area of mixture of carbonate, clasolite and basalt follows, except for its content of Co, which is relatively lower; and the purple earth area of Mesozoic clasolite, the yellow-red earth area of clasolite and the dark red earth area of Precambrian metamorphite are the lowest

对云南省反刍动物生产基地所属的6个主要地质背景区的土壤和岩石样品的K、Na、Mg、Cu、Zn、Mn、Co、Fe、Se、I和F元素及土壤的有机质、阳离子交换量和pH进行测定分析，结果表明：晚古生代玄武岩红壤区和碳酸岩盐红壤区土壤各种矿质元素都比较高，有机质含量与CEC都较高，特别是Ⅴ区最为显著；碳酸岩盐、碎屑岩和玄武岩混合型黄红壤区除了Co含量较低外，其他元素含量都居中等或偏上水平，有机质含量与CEC仅次于第1类背景区；碎屑岩紫色土区、变质岩赤红壤区和碎屑岩黄红壤区大多数矿质养分相对都比较低，有机质含量与CEC最低。

The study of molecular topological indices and the invariants of molecular graph is one of the most active area in the modern chemical graph theory.

分子拓扑指数以及分子图的不变量的研究是现代化学图论中最活跃的研究领域之一。

On this foundation, the paper proposes distinguishing the shape of the graph by using the graph area and the perimeter ratio scope.

在此基础上提出了利用图形的面积和周长的比值范围来识别出图形的形状。

The paper proposes distinguishing the shape of the graph by using the graph area and the perimeter ratio scope.

在此基础上提出了利用图形的面积和周长的比值范围来识别出图形的形状。

The spectral theory of graph is not only an important area in graph theory but also an active topic. There are extensive applications in the fields of quantum chemistry, physics, computer science, communication network and information science.

近半个世纪以来，谱图论形成发展成为图论研究的重要领域之一，也是一个非常活跃的研究方向，它在量子化、物理、计算机科学、通信网络及信息科学中均有广泛的应用。

In present textbook,for curvilinear parameter equation,there is no defined methods to solve characteristic of graph ,copy methods and the area of self-closed planar graph .

在现行教材中，有关参数方程所示曲线的图像特点、描绘方法以及自身封闭所围成的平面图形的面积等都未给出明确的求法，为此，文中给出了关于曲线参数方程的两个教学注记，以弥补教材中的不足。

The fundamental problem of the geometry of matrices can be interpreted as a theorem on graph automorphism of the graph on a certain kind of matrices, and it also has practical application in the linear preserver problems which are the research area in matrix and operator theory.

矩阵几何的基本定理也可以叙述为图论中的图的自同构定理；并且它在矩阵和算子的保持问题中有很好的应用。

Based on the characteristics above, this paper presents two graph-theory algorithms fast identifying the weakness of networks according to wide area measurement information such as pre-fault network topology and load flow, namely the algorithm of fast search for transmission section based graph theory and the algorithm of fast search for flow transferring Minimal Short Path.

基于潮流转移的上述特点，本文根据事故前的网络拓扑结构、潮流分布状态、输电元件物理参数与系统电压等级等广域测量信息，针对两种不同的网络结构分别提出了相应的快速识别网络薄弱环节的图论方法，即输电断面快速搜索算法与潮流转移最短路径快速搜索算法。

The DTM for automatic-design of thruway was put forward by Prof. Miller in 1956. Since then , the DEM is used for design of various circuit diagram, and for account of area, cubage, gradient of various project, and for estimating visibility from point to point; for rendering contour, grade-graph, aspect-graph, solid model; for making orthographic image and repair map in the Topography; for assistant data to classify in the Remote Sensing; as basic data in the GIS, for analysis and layout actuality of using soil, for disaster prediction; for navigation, guiding missile in the military affairs.

美国麻省理工学院Miller教授为了高速公路的自动设计于1956年提出了数字地面模型的概念后，DEM被用于各种线路的设计及各种工程的面积、体积、坡度的计算，任意两点间可视性判断及绘制任意断面图；在测绘中被用于绘制等高线、坡度坡向图、立体透视图，制作正射影像图与地图的修测；在遥感中可作为分类的辅助数据；它是地理信息系统的基础数据，可用于土地利用现状的分析、合理规划及洪水险情预报等；在军事上可用于导航及导弹制导；在工业上可利用数字表面模型DSM或数字物体模型绘制出表面结构复杂的物体的形状[2]。

It has to be computed by the host for the actual clock rate.

主控制器可以用来计算实际的时钟速率。

Let's see what you got.

让我看看你的东西