5
• In addition to the basic equipment, there are many new cell phone technologies to provide the many new services that are now available, enabling cell phone users to enjoy many new applications from games, and ringtone downloads to picture and video downloads. Plenty of technologies are being used today, ranging from GSM, GPRS, EDGE to UMTS or W-CDMA and cdmaOne (IS-95) to CDMA2000 1X, EV-DO and EV-DV and mobile TV technologies such as MediaFLO, DMB, and DVB-H..
翻译：蜂窝电话或移动电话，是一种短波模拟或数字通信方式，此通信方式可使用户 使用的移动电话与附近的发射机之间有无线连接。人们称发射机的覆盖范围为蜂窝。 一蜂窝电话系统图示于图13-1。
4
• Generally, cellular telephone service is available in urban areas and along major highways. As the cellular telephone user moves from one cell or area of coverage to another, the telephone is effectively passed on to the local cell transmitter.
•
There are many mobile or cell phone systems
used today in all over the world and there is a
considerable amount of equipment ranging from the
cell phones themselves to cellular base stations,
• infrastructure [ 'infrə'strʌktʃə ] n. 基础结构；基础设 施
• keypad [ 'ki:pæd ] n. 小键盘
• lithium [ 'liθiəm ] n. 锂
• migrate [ mai'greit, 'maigreit ] v. 移动, 迁移
• monitor [ 'mɔnitə ] v. 监视 n. 显示器
1.生词
• antenna [ æn‘tenə ] n. 天线 • cellular [ ‘seljulə ] a. 细胞的；蜂窝的 • drain [ drein ] v. 耗尽n. 消耗
2
• equalisation [ i:kwili‘zeiʃən ] n. 均衡；补偿
• handset [ 'hændset ] n. 电话听筒, 手持机
• subscriber [ sʌbs'kraibə ] n. 电话用户；签署者；预
订者；订阅者
3
2. 课文翻译讲解
• Cellular telephone, or mobile telephone, is a type of short-wave analog or digital telecommunication in which a subscriber has a wireless connection from a mobile telephone to a relatively nearby transmitter. The transmitter's span of coverage is called a cell. A cellular telephone system is schematically shown in Figure 13-1.
13 Radio Telecommunications
• 学习重点： • （1）掌握有关无线电通信的基本单词、词
组和缩略语的基本含义及用法 • （2）培养阅读翻译有关无线电通信的科技
文献和产品说明书的能力 • （3）学习科技英语中的直译和意译，了解
意译的几种主要方法
1
Passage A
Mobile Telecommunications
• nickel [ 'nikl ] n. 镍 v. 镀镍于
• protocol [ 'prəutəkɔl ] n. 草案；协议
• ringtone [ riŋtəun ] n. 手机铃音
• stack [ stæk ] n. 堆叠；堆栈
• animation [ æni‘meiʃən ] n.卡通制作
antennas and the network infrastructure.
翻译：一般来说，蜂窝电话服务用于郊区和主要的高速公路上，随着移动电话用 户从一个蜂窝或覆盖区移动到另一个，该电话被有效地传递到当地的蜂窝电话发 射机上。
现在全世界有许多正在使用移动或蜂窝电话系统，并有相当大量的设备，这 些设备包括从移动电话本身到基站、天线和网络架构等基础设施 。
翻译：除了基本的设备以外，现在有许多新的蜂窝电话技术提供了许多新的、可供
选择的服务，使手机用户享受到了许多新的应用，如从游戏和铃声下载到图片和视
频下载。目前，大量的通信技术正在被使用，包括从GSM ， GPRS ， EDห้องสมุดไป่ตู้E到
UMTS技术或W-CDMA和cdmaOne（IS- 95 ）到CDMA2000 1X ， EV - DO和
EV - DV技术以及移动电视技术，如MediaFLO，DMB及DVB - H技术。
6
• The technology behind cellular systems and cell phones has developed from the firstgeneration (1G) systems to the secondgeneration (2G) systems and then to the thirdgeneration (3G) systems. At each stage the improved performance and further facilities were available, from SMS messaging to video downloads.