事实上，因为有中国的很大一部分土地交通不便且荒凉的，主要人口中心的密度远远高于这些数字所显示的。
In fact, because a large part of China is inaccessible and inhospitable, the density in the main population centres is much higher than those figures suggest.
总部位于深圳的华视传媒主要在公交车和其它场所的数字显示屏上播出广告和本地电视节目。
VisionChina, based in Shenzhen, operates digital-video displays on buses and other locations, delivering advertising and local-television content.
至于数字显示屏本身，所有主要品牌经销商都应该提供严谨的保修条款和售后服务。
As for the digital displays themselves, all distributors of major brands should provide strong warranties and after-sale service.
本文主要论述了如何将老式白炽灯显示屏改造成，既可以显示数字信息，又可以显示模拟图像信息的LED灰度屏的设计方案。
This article mainly discusses the change of the incandescent lamp display screen into LED gray-scale screen, which displays both digital information and analogue pictures.
本论文讨论用PLD芯片作为主要控制逻辑来设计计算机数字视频系统的一个典型应用型产品——LED视频电子显示屏系统的研制方法。
The thesis discusses on how to research and then design the LED video panel system, which is a typical product of computer digital video system, by using the PLD chip as the main control logic.
论文的主要工作有：首先，重点研究并制定了电子海图系统与雷达数字批目标信息叠加显示的实施方案。
The main tasks of the paper include: Firstly, it studies and establishes an implementing project of overlay display of the ECDIS and the radar digital batched objects information.
交互式数字图象的配准与镶嵌主要由二个步骤来完成：第一步是由人在显示屏幕上选择确定图像几何位置的控制点集，然后由此确定一幅图像几何变换使两幅图像在几何位置上配准。
Step one is to pick up the control point set which determines the geometric position of images, and then to derive a geometric transform for registering one image to another from those points.
在此基础上，给出了三维数字地形交互显示的两种主要方式及实现方法。
Moreover, we also discussed the main two methods of drawing and displaying of it.
电子计算器是一种典型的大规模数字集成电路，主要由微处理器和外围的显示电路、键盘接口电路等组合而成。
Calculator chip is a typical kind of digital large scale integrated circuit. It consists of microprocessor and peripheral display diver and keyboard interface circuit.
电子计算器是一种典型的大规模数字集成电路，主要由微处理器和外围的显示电路、键盘接口电路等组合而成。
Calculator chip is a typical kind of digital large scale integrated circuit. It consists of microprocessor and peripheral display diver and keyboard interface circuit.
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