| 1. | Connectionless broadband data services cbds
无连接宽带数据业务 |
| 2. | Wideband data peak frequency deviation
宽带数据峰值频偏 |
| 3. | Coaxial cable - a type of cable used for broadband data and cable systems , with excellent broadband frequency characteristics , noise immunity and physical durability
同轴电缆-一种应用在宽带数据和有线电视系统中的电缆，它具有非常优良的宽带频率特性，能消除杂音且有物理耐久性。 |
| 4. | This capability is now far below people ' s needs to explore internet or to link intranet . asymmetric digital subscriber line ( adsl ) is a new kind of broad band loop technology
受制于传统的模拟调制技术，数据传输速率一般低于64kb s ，这远远不能满足各种宽带数据业务(比如internet浏览等)的要求。 |
| 5. | Full service means realization of full service processing capability by combining optical cross connection , atmip and tbits processing capability and linking realtime and broadband data services . 3
全业务体现在融合光交叉、 atmip以及太比特处理能力，将实时及宽带数据业务有机地衔接在一起，实现全业务处理能力。 |
| 6. | One of the first commercial systems utilizing ofdm was adsl ( asymmetrical digital subscriber line ) , a standard for high data - rate communication over twisted - pair wires
第一个ofdm技术的实际应用是非对称数字用户环路( asymmetricaldigitalsubscriberline ， adsl ) ，这是一种能够通过普通电话线提供宽带数据业务的标准。 |
| 7. | With the development of broad band digital service and diversification of the way used to access to net , access networks has evolved to an integrated net , which can supply the integrated service about access to net , and meeting ability
随着atm ip等宽带数据业务的发展和用户接入方式的多样化，接入网将逐步演变成为具有提供综合业务接入和汇聚能力的综合性网络。 |
| 8. | As regards the development of the service layer , shanghai telecom s objective is to transit gradually from providing narrow - band data service as the dominant service to providing broadband data service as the dominant service . 6
今后上海电信在业务层上的建设目标是：从以窄带数据业务为主、兼顾宽带数据业务，逐步发展为宽带、窄带业务并举，最后达到以宽带数据业务为主，兼顾窄带业务。 |
| 9. | At the present stage , broadband data service accounts for 83 percent of used bandwidth in the long - distance transmission network , equal to 5 times voice bandwidth , mainly distributed in economically developed east and south parts of china , making up 56 percent of total bandwidth demand
现阶段，长途传输网中宽带数据业务占已使用带宽的83 ，相当于话音带宽的5倍，主要分布在东部和南部的经济发达地区，占总带宽需求的56 。 |
| 10. | As a broad band access technology , digital subscribe line technology makes full use of the gigantic existing twisted - pair copper cable network , which protects the enormous investment , prolongs its life - span , postpones laying still expensive optical fiber and utmostly meets the band demand of broad band of internet data services
数字用户线技术作为一种宽带接入技术，它充分利用了现有的、巨大的双绞线铜缆网，保护了这一巨大投资，延长了其使用寿命，推迟了敷设仍然较昂贵的光纤，并最大可能的满足了以internet为代表宽带数据业务的带宽要求。 |
