查询词典 space model

Also, calculate the distance of a line, calculate the mid point of a line, calculate the mid point of an arc, convert radians to degrees and vice versa, send characters to the AutoCAD command prompt, add single and multiple-line text to a drawing, add a new layer, calculate the slope and angle of a line, switch to model and paper space, check for existence of a block, see if a block has attributes, search and replace block attributes/single-line text/multiple-line text, count/erase/highlight/de-highlight specified number of a specified object, etc, etc. Doing each function with straight Visual Basic would require several lines of code, but with CAD.OCX only a minimal amount of code is required!

此外，计算出的距离为限，计算中的点线，计算中点的一个弧形的，转换成弧度，以度，反之亦然，送字给AutoCAD命令提示中，增加了单剂量和多行文本，一绘画中，增加一个新层，计算出坡度和角度的一条线，开关，以模型和图纸空间，检查是否存在著一个座，看有没有座了属性，搜索和替换块属性/单线text/multiple-行文本，计数/擦除/高/解突出指定数量的指定对象，等，等做了每个函数与直Visual Basic中，将需要几行代码，但与cad.ocx只有极小量的代码需要！

This geometry, which has been used to model complex objects found in nature such as clouds and coastlines, has space-filling properties that can be utilized to miniaturize antennas.

这样的图形构成方式已经被用来塑造描述在大自然中存在的一些复杂的物体，例如天空中的云以及海岸线的轮廓等等。

The mathematical model can work out the minimum zone solution of the cylindricity error with arbitrary position in space, and there are no special requirements in choosing measurement points.

所建立的目标函数基于圆柱度误差最小区域定义，可以评定空间任意位置圆柱度误差的最小区域解，对测点无特殊要求。

Based on the guess probability and the misplay probability in the knowledge space theory, a new model is proposed which could effectively diagnose the knowledge states of students in that case.

本文提出了一种知识空间理论中基于猜测概率和失误概率的学习诊断模型，当受测者出现猜测或失误时，该模型仍可对受测者的知识状态进行有效的诊断。

A primary experiment of the stealth model of plasma in missal radar-dome is made in the vacuum environment with the scheme of space-wave-method.

率先采用空间波法实验方案，在真空环境下开展了导弹雷达天线舱等离子体隐身模型的初步实验研究。

Around the topic, the weak points of the traditional platform is analyzed first, such as complex arithmetic, long calculating time, high needs of hardware and so on. A real time control method based on virtual simulation is suggested to separate the complex positive/negative calculation of space kinematic and real time motion control. And a"3-2-1"type 6DOF platform is designed with the reference of the MAST (Multi-Axis Shaking Table) of MTS. The kinematic and dynamic calculation of the platform is finished. According to the calculating result, the control system of the"3-2-1"type 6DOF platform including 6 linear servo electric cylinders is designed and constructed. And the professional software Pro/E is used to do the 3D model and 6DOF motion simulation of the platform. The motion curves of the pistons of the 6 cylinders are exported with the simulation. At last the control software is programmed with Microsoft Visual Basic 6.0 and realizes the functions with the commands of GE series motion controllers. When loading the motion curves exported with the simulation, every cylinder can follow the curve very well and the platform realizes the hoped 6DOF motion.

围绕选题，本论文首先分析了传统的运动平台控制方法所存在的算法复杂、解算耗时长、硬件需求高的缺点，提出了一种基于虚拟仿真的实时控制方法，该方法将复杂的空间运动学正、反解与实时运动控制相分离；之后，参考MTS公司的MAST多轴振动平台，设计了新型的"3-2-1"型六自由度平台，并进行了运动学及动力学计算，根据相关计算结果，设计与搭建了包括驱动6个直线伺服电动缸在内的"3-2-1"型六自由度平台控制系统；接着，使用Pro/E对"3-2-1"型六自由度平台进行了三维建模和六自由度运动学仿真，并由仿真直接获得了6个直线伺服电动缸的活塞杆的相应运动曲线；最后使用Microsoft Visual Basic 6.0编写了控制软件界面，通过调用GE系列运动控制卡的各种命令函数实现了控制系统的相关功能，而当加载仿真得到的各缸运动曲线后，每缸均能很好地跟踪输入曲线，使平台实现了期望的多自由度运动。

Established the aircraft mathematical model of space motion, application, Newton interpolation polynomial method on the aerodynamic parameters identification, use of C language compiled simulation program, and to out the simulation results and analysis.

详细说明：对某飞行器的全空域飞行弹道进行了仿真研究。建立了飞行器空间运动的数学模型，应用"牛顿插值多项式法"对气动力参数进行了辨识，用C语言编制了仿真程序，并给出了仿真结果及分析。

As the parameters are numerous in non-rigid registration model, the particle swarm optimization algorithm is selected to achieve exploration and exploitation in the whole feasible space accurately and fleetly for the unknown parameters of nonrigid transformation. Particle swarm optimization algorithm has the characteristic of fast global searching for the optimal, but it is restricted in applications by the inclination of its particles falling into premature convergence.

在非刚性图像配准的框架下，提出应用Wendland紧支径向基函数作为参数化的空间变换模型，并针对非刚性配准模型的未知参数量大的问题，提出应用全局化的粒子群优化算法对整个可行性空间进行快速而准确的探索和挖掘，以求得非刚性变形的未知参数。

To examine the topological space theory by nonstandard analysis, the nonstandard characteristics of ideals convergence is given in the enlargement model.

为了用非标准分析方法进一步研究拓扑空间，在扩大模型下，对理想收敛的基本理论进行了非标准刻画：设X是拓扑空间，I是X中的理想，I收敛于点x，当且仅当v v 。

Based on the nonstandard topology definition and enlarged model, the concept of compactness in the topological space are described and characterized in this paper.

在非标准扩大模型和拓扑的非标准定义基础之上，对拓扑空间中紧性的概念及相关结论进行了描述和刻画。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。