查询词典 drawing paper

In this paper, the authors transform the problem of undirected graph drawing to the problem of function optimization, then use genetic algorithms to find approximate optimal solutions of the objective function, and thus obtain a general structure of undirected graph drawing algorithms.

将一般无向图的画图问题转化为函数优化问题，用遗传算法求目标函数的最优解的近似值，从而得到无向图自动画图算法的一个一般框架。

In the paper, the author did some research on the Graphical Model Platform of MGMS, the subsystem of MGMS. The GMP mainly has four functions as follows. The first aspect is the drawing function of micro-grid power system, including drawing power equipment, selecting power equipment and delete power equipment etc. The second aspect is the function of modifying parameters of power equipment. The third aspect is the function of topology automatic identification of the power system. The last aspect is advanced application function of GMP, including topology analysis and the real-time monitoring of the micro-grid power system which is in operation.

GMP主要要实现以下四个方面的功能：首先是设备绘图功能，包括鼠标绘制设备图元、鼠标选中设备图元、删除设备图元等基本的人机交互绘制微电网接线图功能；其次是修改已建设备的属性；再有是建立与建立的图形系统一致的电力系统网络模型，即对已绘图形的网络拓扑自动识别；最后是在此基础上的高级应用功能，包括电力系统网络拓扑的着色分析和运行数据的实时显示功能。

This paper introduces the ore drawing process with the natural caving method and the characteristics of each stage, expounds the flow of the ore drawing management with the natural caving method , and probes into some measures that should be adopted in the special condition to reduce the interfusion of waste rock.

介绍了自然崩落法的放矿过程及各阶段的特点，阐述了自然崩落法放矿管理流程，探讨了在特殊条件下应采取的特殊措施，以减少废石的混入。

This paper introduces a method of adding a new popup menu item to the menu groups of AutoCAD, creating user interface, establishing macro code,designing and drawing the contour curve of plate cam at the designated point in AutoCAD based on AutoCAD VBA,providing a living example for designing and drawing the complex planar curve in AutoCAD.

利用AutoCADVBA向AutoCAD菜单栏添加新菜单项，创建图形用户界面，编制宏代码，并在AutoCAD中设计和定点绘制凸轮轮廓曲线，为在AutoCAD中设计和绘制复杂平面曲线提供了具体实例。

When the drawing board rotates it makes direct contact with the earth itself, but paper can only contact with the earth loosely through the drawing board. The seismoscope works according to this principle.

四线摆在运动时画笔直接与地球本身相连，而纸只是通过四根摆线松散的与地球相连，地震仪就是用这种原理工作的。

The hand - drawing is not good for the second production and map - users. In this paper, the classification of folds is firstly dis-cussed. Based on Ramsay classification standard, drawing alded by computer of anticline and syncline have been tested to find a new arithmetic applica-tion.

以兰姆赛分类方案为基础，通过褶皱形态的几何特征分析，提出一种针对简单背，向斜构造的计算机辅助设计算法，并编写出相应的褶皱剖面形态的模拟程序，利用各种不同形态的褶皱实例进行试验。

This paper discusses the drawing of hyperbola normal through a point outside the hyperbola and points out the unsolvability of geometric drawing method and the unintegrality of optimization method.

对过双曲线外一定点的法线作图问题作了探讨，提出了几何作图法的不可解性及优化法解的不全性。

The paper describes the process ofφ20mm Cu-Sn alloy wirebar production in continuous casting and roiling process,analyzes the impact of the wirebar s oxygen and tin content distribution on production stability, describes the cold-forming process of contact wire manufacturing by drawing machine,and studies and compares anti-drawing strength and extension capability of it.

介绍了采用连铸连轧工艺生产φ20mm铜锡合金线坯的过程，分析了线坯氧含量、锡含量对生产稳定性的影响。

The present paper analyzes causes to the breakdown of the wire rod such as the central shrinkage cavity and carbon segregation, surface transverse cracks, harmful structure of bulky pearlite and web shaped carbonide and puts forward a few relevant measures for improvement in the physical product quality and reduction of fracture rate of the wire rod including proper control of the casting temperature,drawing speed, intensity of secondary cooling as well as adjustment of the intensity of control rolling and accelerated cooling and optimization of the drawing parameters.

通过对中心缩孔和碳偏析、表面横裂纹、粗大珠光体或网状碳化物不良组织等引起断丝原因的分析，提出通过合理控制浇注温度、拉速、二冷强度、控轧控冷强度及拉拔工艺参数等措施，改进盘条实物质量，降低断丝率。关键词 SWRH82B/SAE1080；脆断；质量分析；工艺控制

Using large sample DNA of capacity technology, the maize high lysine content of SSR mark analyse technological platform has been established in this paper. The main results are as follows: the five comparing research methods of drawing maize DNA mark have shown that the method of iso- sulphur cyanic acid guanidine drawing maize genome DNA has the superiority of using less medicine, operating sequence more simple , faster, and costs lower , steady and reliable quality of DNA, etc..Utilizing this method , one person can draw 300-400 DNA samples each workday.lt indicates that the method can be used in SSR marker of maize,.

本文从大样本容量的DNA快速提取技术入手，初步建立了玉米高赖氨酸含量的SSR分子标记分析技术平台，获得的主要结果如下：对五种玉米DNA提取方法的比较研究认为，异硫氰酸胍法提取玉米基因组DNA，具有使用药品少、操作步骤简单、快速、成本低、DNA质量稳定可靠等优点，利用该方法，每人每个工作日可以提取300～400个DNA样品，可以在玉米SSR标记分析中应用。

I bought a nice wrist watch as a surprise for my wife's birthday.

我买了一个漂亮的手表想要给我妻子的生日一个惊喜。

We don t expect students to be sponges. You can t expect to absorb everything and not have any questions to ask.

我们并不期待我们的学生是一块海绵，你没可能接收所有的东西而不提出任何问题。