电子信息专业英语Unit 13.pptVIP

电子信息专业英语Unit 13 3G Technology Contents Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Knowledge about Translation Knowledge about Translation Knowledge about Translation Knowledge about Translation Classroom Reading Classroom Reading Classroom Reading Classroom Reading Classroom Reading Classroom Reading Company Logo * LOGO 大连理工大学出版社 Text A Knowledge about Translation B Classroom Reading C 3G Technology What is 3G? 3G is the third generation of mobile phone standards and technology, after 2G. It is based on the International Telecommunication Union (ITU) family of standards under the International Mobile Telecommunications programme, “IMT-2000”. 什么是3G ? 3G是继2G之后的第三代移动电话标准和技术。它是基于国际移动通信方案“IMT – 2000”的国际电讯联盟（ITU）的系列标准。 T N the International Telecommunication Union 国际电信联盟 [ITU] (总部在瑞士 日内瓦,现有会员?准会员150多个 国家和地区) IMT-2000 指第三代移动通信系统 3G技术使网络运营商向用户提供更广泛更先进的服务的同时，通过改善频谱效率实现更大的网络容量。服务包括在移动环境下所有的广域无线语音电话和宽带无线数据通信。 T N 3G technologies enable network operators to offer users a wider range of more advanced services while achieving greater network capacity through improved spectral efficiency. Services include wide-area wireless voice telephony and broadband wireless data, all in a mobile environment. network capacity 网络容量 broadband  n. 宽带 3G（第三代）的目标，是使移动通信设备在一个大的地理区域内具有高得多的数据传输率速度，在有些地区数据传输速率高达2M bps也是可能的。 T N The aim of 3G (the Third Generation) is to deliver the capability of much higher data rates to mobile communications devices over a large geographical area. Data rates of up to 2 megabits per second will be capable in some areas. megabit  n. 百万位,兆位 seamless  a. 无缝合线的,无伤痕的 统一规范全世界的无线设备也是3G（第三代）的目标，因此来自英国的用户在欧洲和美国旅行时，可以使用相同的高速数据传输装置，如同他们旅行全球任何一个地方一样。 T N It is also the aim of 3G to unify the wireless devices the world over, so a user from the UK, can travel Europe and the US, and use the same, high speed data