查询词典 plane chart

From the view of fracture mechanics, the problem involving a center crack in a rectangular piezoelectric body under anti-plane mechanical shear displacement and in-plane electrical field is analyzed by the boundary collocation method in this paper.

从断裂力学的观点出发，采用边界配置法研究了含中心裂纹的矩形截面的压电材料在平面内电场和反平面变形作用下的应力场和电场的解，详细介绍了该方法的程序设计过程。

Based on the fundamental solution of plane piezoelectric problems and the basic thought of the virtual boundary element method for elasticity, this paper presents a virtual boundary element-equivalent collocation method for plane piezoelectric materials.

利用压电材料平面问题的基本解和弹性力学虚边界元方法的基本思想，提出了压电材料平面问题的虚边界元-等额配点解法。

In[5],combining the algebraic topology method,we have proven that conjunction matrix is complete topological invariant of bounded closed domain in plane under F-homeomorphism.so,for any two bounded closed domain in plane ?

主要原因在于拓扑不变量通常比较难算，没有比较实用的方法来恰当地提取图形的拓扑不变量，尤其是对较复杂的图形而言更是困难重重。

But survey firm shows, consumptive electron area just is in to Wi-Fi calefacient just, sport plane console and hold the product area such as sport plane to stretch double arm welcome to Wi-Fi, and digital camera and videocorder of independent type individual (the other product area such as PVR) is right Wi-Fi all the time gate lock.

但调研公司暗示，生产电子区域对于Wi-Fi只是正在变暖罢了，游戏机节制台和手持游戏机等产物区域对Wi-Fi张开双臂接待，而数字摄像机和自力式小我录像机等其它产物区域则对Wi-Fi一向大门紧闭。

Based on the vulnerability analysis to the carrier plane group and aimed to the issue of quantitative,the damage effectiveness of submunition against carrier plane group is analyzed,the model of pixel-simulation is established,and the computer simulating calculation of damage effectiveness of the shipboard aircraft group under the attacking of many missiles is carried out.

是子母弹对航空母舰毁伤效果分析的第三部分。在对舰载机群进行易损性分析的基础上，针对子母弹战斗部攻击舰载机群毁伤效果的定量分析问题，提出了基于像素仿真的模拟方法，实现了多弹攻击下的舰载机群毁伤效果的计算机模拟计算。本研究对航空母舰毁伤效果的评估和火力计划方案的制定具有重要指导意义

We must use inertial component as feedback measuring sensor of velocity- stabilized loop to reduce regulation motion of carrier (such as plane, missile .etc) of photoelectric system carried by plane, and make a gyro stabilized control system.

中文摘要机载光电设备中必须采用惯性传感元件作为速率稳定回路的传感器，构成陀螺稳定控制系统，其目的是最大限度地降低载体的不规则运动对光电探测系统视轴的影响，本系统也毫无例外地采用惯性测速元件。

Whereas parallel projections are used to project points onto the image plane along parallel lines, the perspective projection projects points onto the image plane along lines that emanate from a single point, called the center of projection.

与平行投影沿着平行线将物体投影到图像平面上不同，透视投影按照从投影中心这一点发出的直线将物体投影到图像平面。

This is based on the feature of changelessness of the intensity contour in the Fourier spectrum plane while object plane is moved in Fourier transform system.

根据傅里叶变换系统中物面平移其频谱面上光强分布不变的特点，提出一种利用二次傅里叶变换实现CCD精密定焦的方法。

As long as the root of the characteristic equation is within the unit circle of z-plane and the corresponding PID parameter is got, the closed loop control system is sure to be stable. Although the root of the characteristic equation can vary within the unit circle of z-plane,different value may affect the control property differently.

本文所采用的这种确定PID参数的方法，虽然可以使特征方程的根在z平面的单位圆内任意取值，但各种取值情况对变风量空调系统的控制品质的影响却不同，因此，要对各种特征方程的根的取值情况进行寻优，本文采用遗传算法对特征方程的根进行寻优，从而使控制器的参数得以优化。

In this paper,the B-spline curve is supposed as boundary curves,when they are in two paralled plane and two arbitrary plane,the condition about the control vertex of characteristic polygon when the ruled surface is developable are gained,solved the designing problem of degree and degree B-spline curve .Throughing (2,3) degree and (2,2) degree B-spline ,we haveproved the validity and utility of this method.

本文用两条B样条曲线作边界曲线，当它们位于两平行平面上和两任意平面上时，研究得到了由它们形成的直纹面为可展面时它们的特征多边形顶点满足的条件，解决了(n，n+1)次和次可展B样条曲面的设计问题，然后以(2，3)次和(2，2)次B样条曲面为构造实例，证明了该算法的正确性和实用性。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。