查询词典 digital coding

Digital Terrain Model is digital expression of geologic surface attributively information, it is also digital description with spatial location and terrain properties features.

数字地形模型是地形表面形态属性信息的数字表达，是带有空间位置特征和地形属性特征的数字描述。

We proposed the simplest structure of 2-D bilinear transformation digital circuit, we proposed four approaches of the realizations:(1) Realization of 2-D discrete domain difference equations;(2) 2-D FFT realization;(3) Digital hardware implementation;(4) by 2-D recursive digital structure to realize them.

在第七章，我们则重点研究了二维数字滤波器的实现问题。我们对第六章提出的2-D双线性变换电路又作了进一步的简化，获得了一种最简结构的二维双线性变换数字电路，该电路仅有二个延时器和一个乘法器。在第七章里，我们提出了二维跳耦型数字滤波器的四种实现方法：(1)二维时域差分方程实现；(2)二维FFT实现；(3)数字硬件实现，(4)用2-D递归数字结构实现。

ARM embedded system and DSP are widely used in everywhere nowadays, for example: PDA, digital top box, digital camera, and digital TV.

ARM嵌入式系统和数字信号处理器已无处不在，手机、掌上电脑、数字机顶盒、数码相机、数字电视等产品应用前景越来越广泛。

On the basis of investigating current situation of construction of academic digital libraries in China,this article makes classification statistic and analysis about the quality and quantity of digital resources construction,the development of digital resources integration,of thirtysix academic libraries and compare them.

当今数字图书馆建设已成为衡量一个国家信息基础和信息产业水平的重要标志。自上世纪末以来，各国竞相投资数字图书馆建设，并在世界范围内掀起了数字图书馆建设高潮。近年，我国各领域，特别是高校图书馆正紧跟世界发展的潮流，也掀起了一个数字图书馆建设的热浪，并取得了可喜的成果。

The book is divided into 14 chapters, including Introduction, continuous control system theory, process and discrete sampling, Z transform, sampled-data systems, discrete approximation of continuous system the equivalent, based on mathematical transform the classical design method, based on state space pole placement design methodology, multi-variable system of quadratic optimal control, quantitative effects, the choice of sampling period, the digital control system modeling, digital control system for a variety of design methods, variables quadratic optimal control systems, sampling cycle of selection, non-linear control of the problem, as well as digital control system, a typical application - Disk drive servo control design.

全书共分14章，内容包括概论、连续控制系统理论、采样过程和离散化、Z变换、采样数据系统、连续系统的近似离散等效、基于数学变换的经典设计方法、基于状态空间的极点配置设计方法、多变量系统的二次型最优控制、量化效应、采样周期的选择、数字控制系统的建模问题、数字控制系统的各种设计方法、变量系统的二次型最优控制、采样周期的选择、非线性控制的有关问题，以及数字控制系统的一个典型应用——磁盘驱动器的伺服控制设计等。

Through the discourse on elements of printing quality controlment, and the printing controlling digital and methods, the thesis is going to give an elaboration and analysis on the printing quality controlment, in five aspects as the data transmission in digital flowsheet, color management in open sysem, data transmission and management, digital preliminary and on-line printing quality testing.

通过论述印刷质量控制影响因素和质量控制的数字化及其方法后，从数字化流程中数据流的传递、开放式体系下的色彩管理、数据传输与管理、数码打样、在线印刷质量检测五个方面进行印刷质量控制的阐述和分析。

Digital IF mainly include: Digital Up Convert、Digital Down Convert.A/D、D/A and Number control oscillator.

数字中频处理主要包括数字上变频、数字下变频、A/D与D/A的处理以及数控振荡器等。

May say that the digital supervision system's core is the image compression storage technology and the network digital supervision system, regarding these two kind of technologies in supervisory system's application, is the digital supervision system's present situation and the trend of development.

可以说数字监控系统的核心就是图像压缩存储技术和网络化数字监控系统，围绕这两种技术在监控系统中的应用，就是数字监控系统的现状及发展趋势。

May say that the digital supervision systems core is the image compression storage technology and the network digital supervision system, regarding these two kind of technologies in supervisory systems application, is the digital supervision systems present situation and the trend of development.

可以说数字监控系统的核心就是图像压缩存储技术和网络化数字监控系统，围绕这两种技术在监控系统中的应用，就是数字监控系统的现状及发展趋势。

As a special plan, it is highly summarized the basis for mapping the city's main achievements in recent years, pointing out the current development trend of the information age, and from the organization, financial, technical, security and other aspects of proposed safeguards, in order to Hebi City the completion of the socialist market economic system and practical basis for mapping the local management system and operational mechanism to achieve 1:5000 digital topographic map of the city's coverage, 1:2000,1:1000 and 1:500 scale digital topographic map series covering the key areas and the current trend of dynamic, fast updates, and built municipal basic geographic information and data systems and their transmission network system, and build e-government improve the Hebi City-based natural resources and spatial geographic information database, to build "digital Hebi" geo-spatial information infrastructure framework, and can basically meet the economic and social development of basic surveying and mapping needs of protection and support.

作为专项规划，它高度总结了该市基础测绘工作近年来所取得的主要成就，指明了当今信息化时代的发展趋势，并从组织、财力、技术、安全等方面提出了保障措施，为鹤壁市建成适应社会主义市场经济体制和本地实际的基础测绘管理体制和运行机制，实现1：5000数字化地形图的全市覆盖，1：2000、1：1000及1：500数字化系列比例尺地形图的重点区域覆盖和现势性动态快速更新，建成市级基础地理信息数据体系及其传输网络体系，建成完善鹤壁市电子政务自然资源与空间地理基础信息库，构建"数字鹤壁"地理空间信息基础框架，以及基本满足国民经济和社会发展对基础测绘的需求提供了保障和支撑。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。