坐标系统

In order to extend the effect and security of image encryption algorithm.An image encryption algorithm is presented based on three-dimension chaotic system and bit-computation.The permutation sequences and binary sequences are generated using three-dimension chaotic system.Firstly,the image is pretreated using chaotic system and permutation transformation,then the pixel's gray value's bit sequences are permuted using the permutation sequences generated before,at last,the pixel's gray value's bit sequences are computed by using XOR operating and the binary sequences.

为了改进图像加密算法的安全性和效率，提出了一种基于三维混沌系统和位运算的数字图像加密算法，利用三维混沌序列的坐标分量分别产生置换序列和二值序列，在对待加密图像进行预处理的基础上，先应用混沌置换序列对预处理的结果图像进行基于灰度值位序列的置换操作，然后再应用产生的二值序列对结果图像的灰度值位序列进行位异或加密运算。

According to investigate the relation of coordinate system in CNC lathe , this paper pointed out the coordinates transfer's equation and analyzed several methods of presetting cutter, and introduced to using this function well.

通过数控车床坐标系传递关系的研究，总结出坐标变换公式，就三种不同对刀方法的应用差别进行比较分析，介绍我们的认识，并说明如何针对不同系统的特点来灵活使用它们。

Based on the 3D time-average Navier-Stokes equations, k-ε model was used to simulate the 3D turbulent flow field of whole flow passage in the Francis turbine including guide wickets, runner and draft tube. The energy performance and cavitation performance were predicted from the simulation results, and the calculated data were compared with the results of hydraulic turbine model experiment. The calculation of turbine efficiency and the measured efficiency was very closed and the maximal relative error was 0.9%.

该文基于Navier-Stokes方程和k-ε紊流模型，采用贴体坐标和交错网格系统，用SIMPLEC算法对一模型混流式水轮机引水元件、转轮和尾水管进行了联合计算与转轮单流道计算，数值模拟了水轮机各通流元件内部三维湍流流场，预测了水轮机的能量性能和空化性能，并与水轮机模型试验结果进行了对比。

This system is composed of 32×32 the lattice LED board, the LED board driving circuit, the electro-optical writing pen, the keyboard and the coordinate display panel and the master-control unit.

该系统由32×32 LED点阵屏、点阵屏驱动电路、光电手写笔、键盘、模式与坐标显示板和主控制器组成。

The Headlamp assembly and Auto-door assembly are utilized to validate the AVAS system and the core algorithm, the results is compared to the meament data and 3DCS software.

采用车大灯安装和车门安装两个典型实例对系统及核心算法进行验证，将分析结果分别与三坐标实测数据及3DCS分析结果进行对比分析。

So,coordinate and flatness measurement accuracy and repetition of single camera and double camerae systems were tested respectively in this paper.

因此，分别测试了V-STARS单相机和双相机系统的坐标测量、平面度测量精度和测量重复性。

Socoordinate and flatness measurement accuracy and repetition of single camera and double camerae systems were tested respectively in this paper.

因此，分别测试了V-STARS单相机和双相机系统的坐标测量、平面度测量精度和测量重复性。

Reading coordinates of the starting point and the end point of all the flues from the flue assembly, transmitting to an option control system for processing.

从焰道集合中读取所有焰道对象的起点和终点坐标，发送到运动控制系统进行加工。

Section 2.2 Geodes and Geometry briefly describes OSG's default world coordinate system orientation.

2.2节Geodes和Geometry已经简要的介绍过了OSG的系统默认坐标。

Important is,"Foolish catalog " in the coordinate location system that still used global initiate, the abscissa is searched area, ordinate is searched content, inquiry with accurate staff gauge kill limit is inside smaller, exacter range, the user needs to be clicked a few times only find quickly with beside pertinent service information.

重要的是，&傻目录&中还采用了全球首创的坐标定位系统，横坐标是查找的地区，纵坐标是查找的内容，用精确的标尺将查询结果限定在更小、更准确的范围内，用户只需点击几次就能迅速地找到与身边相关的服务信息。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了