查询词典 portable computer

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

Computer Application Base is a common course of non computer major, and it has special status for it is an important component of the basic computer skill of students.

计算机应用基础是高职院校非计算机专业的公共课，是非计算机专业学生基本技能的重要组成部分，有其独特的地位。

The binary system is the primary language of the computer and the octal and hexadecimal systems are usually used for communication with the computer and for the storage of information within the computer.

二进制系统是计算机的基本语言。八进制和十六进制系统通常在计算机通信和计算机储存信息时用。

The speed of a computer is affected by the number of bits it can process at once. For example, a 32- bit computer can perform arithmetic and manipulations on 32-bit numbers, whereas a 16-bit computer must break large numbers into 16-bit quantities, making it slower.

电脑的运算速度会受到它一次可以处理位元多寡的影响，例如32 位元电脑一次可以进行32 位元的运算，而16 位元的电脑因为每次只能进行16 位元的运算，所以它必须将比较大的数打散成16 位元的量，所以这样会造成速度变慢。

According to introducing, the meeting after these baleful trojan programs affect tube-shaped part of computer science department undertakes to the system of a lot of destroy, be like: Without the license of computer user bowdlerism or it is file of the mass data in replacing interconnected system of computer science department, cause the important data in maintaining existence system to the file is lost or be distorted.

据介绍，这些恶意木马程序感染计算机系统后会对系统进行很多的破坏，如：未经计算机用户的许可而任意删除或是替换计算机系统中大量数据文件，造成保存在系统中重要的数据文件丢失或被篡改。

The meeting after these baleful trojan programs affect tube-shaped part of computer science department undertakes destructive to the system, like the license without computer user bowdlerism or it is file of the mass data in replacing interconnected system of computer science department, cause the important data in maintaining existence system to the file is lost or be distorted.

这些恶意木马程序感染计算机系统后会对系统进行破坏，如未经计算机用户的许可而任意删除或是替换计算机系统中大量数据文件，造成保存在系统中重要的数据文件丢失或被篡改。

In the era of knowledge economy, it is no exaggeration to say that we have entered into by the computer as a medium of the information superhighway, we deal with the computer, in everyday work with computers, leisure, computer can become our partners.

在这个知识经济时代，可以毫不夸张地说，我们已经进入了以电脑为媒介的信息高速公路时代，我们天天与电脑打交道，在电脑上工作、休闲，电脑成了我们离不开的伙伴。

Figure 2-7 the keyboard letter keys --letters numeric keys --numbers punctuation keys --comma, period, semicolon special keys control keys arrow keys Caps Lock key --function keys A computer keyboard contains keys that allow you to type letters of the alphabet, numbers, spaces, punctuation marks, and other symbols; A computer keyboard also contains special keys that allow you to perform specific functions on the computer.

计算机键盘包括字母键，数字键，空格键，标点符号键和其它符号键。计算机键盘还包括在计算机上执行特殊功能的特殊键。

With the development of computer networks, computer use has affected people's work, life, learning, social activities, as well as commercial activities, and basic computer applications is achieved through software.

随着计算机网络的发展，计算机的使用已经影响到了人们的工作，生活，学习，社会活动以及商业活动，而计算机的应用根本上是通过软件来实现的。

This paper has analysed the requirement of the computer-aided compound document production system, builds the structure of computer-aided compound document production system ,studies the information model of compound document object and put forward the develoment scheme of computer-aided compound document production system.

分析计算机辅助复合文档生成系统的需求。创建计算机辅助复合文档生成系统的体系结构。研究复合文档对象的信息模型。提出计算机辅助复合文档生成系统的开发方案。中国图书分类法分类号 F270， TP391

If you are losing confidence in people, call 1 Cor.

如果你对人们没有信心，请看哥林多前书13

I am desirous to know further details.

我想要知道更多的细节。