数字的

A second complication arising from the merger is that the 1977 figures shown in this report are different from the 1977 figures shown in the report we mailed to you last year. Accounting convention requires that when two entities such as Diversified and Berkshire are merged, all financial data subsequently must be presented as if the companies had been merged at the time they were formed rather than just recently. So the enclosed financial statements, in effect, pretend that in 1977 the Diversified-Berkshire merger already had taken place, even though the actual merger date was December 30, 1978. This shifting base makes comparative commentary confusing and, from time to time in our narrative report, we will talk of figures and performance for Berkshire shareholders as historically reported to you rather than as restated after the Diversified merger.

合并案所引发的第二项影响则是今年报表中秀出1977年的数字与去年提供给各位同一年度的数字有所不同，会计原则要求当像多元零售与伯克希尔这样二个独立个体合并时，所有报告的财务数字都必须假设这两家公司原本就在一起，所以后续呈现所有数字，是假设这两家公司早在1977年就已经合并，虽然真正合并的日期是1978年的12月30日，这样的改变使得比较性的评论很容易产生混淆，因为以往的报告中，我们告诉各位的都是伯克希尔的历史记录，而非依照合并多元零售后重新修正数字。

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。

In this paper, the concept of network security and security structures of OSI and Internet is introduced, and various threats confronting the computer network are also discussed. Several kinds of network information security technologies, including firewall technology, virtual private network, intrusion detection system, data encryption technology, identity authentication and security protocol etc. are also examined. The security of internal network is the biggest problem in the construction of each network. The solution to this problem lies in setting up a firewall. The theory of a firewall and the approach to its actualization is studied. Intrusion detection system, an important part of the computer network security system, has gained extensive attention. IDS monitors the computer and network traffic for intrusion and suspicious activities. It not only detects the intrusion from the extranet hacker, but also the intranet users. The emergence of virtual private network paves the way for realizing secure connection of LAN quickly and at a relatively low cost. The concept, function, key techniques, including the tunnel technology, and the ways to realize VPN are expounded in this paper. Also introduced is the data encrypt network technology, which is called the soul of computer network security, such as digital digest, digital signature, digital certificate, digital encrypt arithmetic and so on. At the same time, the principle and the process of implementing network security by digital certificate and digital signature, the basic principle and characters of security protocols, and finally, three of the security protocols, concerning the security problems in network, IPsec, SLL and SET are analyzed in detail Computer network system should be a system of dynamic defence, both dynamic and static, passive as well as active, and even offensive, combined with management and technology.

本文系统地介绍了网络安全的概念、OSI及Internet的安全体系结构，并讨论了计算机网络面临的各种安全威胁；内部网络的安全问题是每个建网单位面临的最大问题，可以认为防火墙技术是解决网络安全的一个主要手段，本文研究了防火墙的原理及其实现手段；作为一种主动的防御措施，入侵检测系统作为网络系统安全的重要组成部分，得到了广泛的重视，TDS对计算机和网络资源上的恶意使用行为进行识别和响应，不仅检测来自外部的入侵行为，也监督内部用户的未授权活动；虚拟专用网技术的出现，为实现网络间的连接提供了快速安全但又相对便宜的手段，本文较深入的探讨了实现VPN的隧道技术，并对VPN的概念、功能、实现途径、基本构成、关键技术及发展前景等问题进行了全面论述；数据加密技术是网络安全核心技术之一，本文从数据加密算法、数字摘要、数字签名及数字证书等几方面简要介绍了数据加密技术，并分析用数字证书和数字签名实现网络安全的原理和过程；对安全协议的基本原理、主要特点进行了较为深入的研究，并就网络的安全性问题剖析了三种安全协议：IPsec协议、SLL协议和SET协议。

Digital circuit experiment teaching is very important in the electrotechnics and electronics series experiments teaching.

一、我校数字电路实验教学发展的主要历史沿革杭州电子科技大学是浙江省最早开设数字电路的学校之一，早在80年代就开展有关数字电路CAD的教学和科研，同时开设数字电路实验，所处的电工电子实验中心为国家级电工电子实验示范中心，其水平处于国内领先地位。

Features - FSK and DTMF dual mode CLIP (Calling Line Identification Presentation)- Stores up to 50 calling numbers, up to 20 digits for each number*- Stores up to 3 last dialed numbers, up to 24 digits for each number*- Stores up to 50 PSTN Phone Book numbers, up to 12 characters for each name and 24 digits for each number (while the LCD displays the maximum of 12 digits)*- LCD displays calling and dialing number - Barring numbers setting (up to 5 numbers)*- Key lock setting - Hot call setting*- Call transfer of external calls*- Internal calls*- Three-way Conference Call*- Various ring melody (up to 9 for option)- Ring volume adjusting (up to 9 levels)- Handset earpiece volume setting (up to 9 levels)- Microphone mute - Delete single or all records in PSTN Phone Book*- Redialing and preparation dialing functions - Paging function to locate the handset easily from base station - Clicking key tone on or off - Supports GAP function - Speakerphon

特点－FSK和DTMF双模的CLIP－能存储多达50组来电，每组来电能够存储20个数字*－能够存储最近的3个已拨电话号码，每个号码能够存储24个数字*－能够存储50个PSTN电话簿号码，每个名字有12个字符，每个号码有24个数字（而LCD最多只能显示12个数字）*－LCD来电显示和去电号码－不包括号码设置（5个号码）*－键盘锁设置－热键设置*－外部来电转接*－内部呼叫*－三方电话会议*－多种铃声（一共有9种可供选择）－音量调节（一共有9个级别）－话机听筒音量设置（一共有9个级别）－静音－在PSTN电话簿内删除单个或者全部记录*－回拨和准备拨号功能－寻呼功能能够简单的从话机座定位话筒－开启或关闭滴答声－支持GAP功能－免提

For example, at the Electronic Commerce times, a large number of digital works accumulated and linked on internet has developed into digital commodity, and the online trades of digital commodity sharply impact the principles of traditional copyright law which includes regionalness, timeliness, and exclusiveness; EC exploits the most extensive market for digital works trades, at the same time it induces the climax of global violation of the copyright of digital works marked with prompt and costless duplicability.

例如，电子商务时代，互联网上积累并链接起来的大量数字作品成为可交换的数字产品，而数字产品网上交易的超地域性和超行业性严重冲击了传统著作权保护的地域性、时间性和专有性特征；电子商务为数字产品的交易开拓了最为广泛的市场，但同时引发了对这种可迅速、无成本复制的数字产品的全球性的著作权侵权高潮等等。

In this paper, the principles and methods of digital image rectification based on digital photogrammetrical mapping system and the overlay of rectified stereo images with raster data or vector map data are described. Further more, under the platform of digital photogrammetrical system, the quick updating of 3D stereo digital relief map is realized.

本文论述了基于数字摄影测量系统的数字影像几何纠正的原理与方法，以及利用纠正后的立体影像和栅格或矢量地形图数据叠加，在数字摄影测量系统下，实现三维立体数字地形图快速修测。

The article definitions the severals and numerical resources industries to turn the related concept first, introduce the present condition of the local and numerical resources construction, and carried on the introduction and simple analysis to the development of the local and numerical resources business enterprise.

文章首先界定了几个与数字资源产业化相关的概念，介绍了国内数字资源建设的现状，并对国内数字资源企业的发展进行了介绍和简单的分析。接下来对国内数字资源企业的产生背景做了全面的分析，并对它们的发展现状做了比较。然后对目前国内数字资源产业的发展环境做了分析。

But digitalspeak is out-of-line numbers and letters, including the number 0 ~ 9, A ~ Z letter directly to the naked eye, it is generally recognized from 8 ~ 16-bit, the number of bits different code system.

而数字标记是在线条边的数字和字母，包含0~9数字，A~Z字母，可间接为肉眼所辨别，凡是从8~16位，码制差别位数也不差别。

RF modules covering GSM, CDMA, TD-SCDMA, WCDMA, WLAN and Wimax wireless communications systems, active modules include power and frequency of the linear power amplifier, transceiver components, modules and integration of selected frequency modules, Passive radio frequency modules, including various types of filters, diplexers, a road, splitters and couplers; wireless network optimization campaign整机including PHS, GSM, CDMA, TD-SCDMA and WCDMA straight-machine, RF Rafah Yuan and indoor distribution systems, digital television, including digital TV mobile wireless transceiver modules, wireless transponders, digital mobile TV repeater, and so on.

射频模块涵盖了GSM、CDMA、TD-SCDMA、WCDMA、WLAN和Wimax等无线通信系统，有源模块包括各种功率和频率的线性功率放大器、收发组件、选频模块和一体化模块等，无源射频模块包括各类滤波器、双工器、合路器、功分器和耦合器等；无线网络优化系列整机包括PHS、GSM、CDMA、TD-SCDMA和WCDMA直放机、射频拉远和室内分布系统等；数字移动电视包括数字电视无线收发模块、无线转发器、数字移动电视直放站等。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。