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- digital data circuit service 数字数据电路业务
- Data Circuit and Data Service Unit (DSU) are provided and maintained by CHT while the Customer Premises Equipment (CPE) is provided and maintained by the customer. 四、数据电路暨数位数据机（DSU）由本公司供租与维护。用户终端设备（CPE）由用户自备与维护。
- private circuit digital data service 专用电路数字数据业务
- Data Circuit and Data Service Unit（DSU）are provided and maintained by CHT while the Customer Premises Equipment (CPE) is provided and maintained by the customer. 四、数据电路暨数位数据机（DSU）由本公司供租与维护。用户终端设备（CPE）由用户自备与维护。
- No conversion from analogue to digital data is needed. 没有必要把模拟转换为数字数据。
- A method is presented to transmit voice and fax on Digital Data Network (DDN) leased lines which guarantees high quality and real time service in a narrowband network. 针对窄带数字网络中传输传统语音业务的质量和实时性问题 ,提出了一种在数字数据网络 (digital data net-work,DDN)专线上传输高质量语音和传真的解决方案。
- Digital data are encoded by means of pits on the recording layer of the disc. 对数字化资料进行编码，是通过光盘记录层面上的凹坑来实现的。
- CK Composite with Check Digits data type. 具检核值的合成资料型态。
- It is a device which converts analog signals (such as sound or voice from microphone), to digital data so that the signal can be processed by a digital circuit such as a digital signal processor. 该转换器将模拟信号（如麦克风传出的话音信号）转换成数字信号后，送入诸如数字信号处理器这样的的数字线路进行处理。
- digital visual frequency circuit service 数字视频电路业务
- This Recommendation provides a GDMO-based information model to support the management of the leased circuit service as outlined in Recommendation M.3208.1. 本建议提出了一个基于被管理对象定义指南(GDMO）的信息模型，该模型支持对在M.;3208
- The left and right channels are combined to one digital data string via a multiplexor. 通过多路转换器将左右声道合成一个声道。
- digital telephone circuit service 数字电话电路业务
- Data bits are allocated to the channels through a highly efficient modulation technique that converts digital data to electrical signal pulses. 数据通过一种高效的调制技术（即把数字数据变成电信号脉冲）分配给各个信道。
- Digital Data Network(DDN) is a data network designed to transmit data on digita! channels. 数字数据网(DDN)是利用数字信道来传输数据信号的数字传输网。
- Generally,digital data in blocks of fixed bit length is combined with a digital encryption key. 一般而言，固定位长的字块中数字化数据是与数字密钥混合在一起的。
- A packet used by a data terminal equipment ( DTE ) or by a data circuit terminating equipment ( DCE ) to indicate a temporary inability to accept additional packets for a virtual call or permanent virtual circuit. 数据终端设备(DTE)或数据电路端接设备(DCE)使用的信息包，用来表示暂时无法接收虚拟呼叫或永久虚拟电路的附加信息包。
- The portion of a data circuit external to data circuit-terminating equipment ( DCE ) that connects the DCE to a data switching exchange ( DSE ), that connects a DCE to one or more other DCEs, or that connects a DSE to another DSE. 在数据电路端接设备(dce)之外的数据电路的一部分,它把dce连接到数据交换机(DSE)上,这个DSE把dce连接到一个或多个其它的dce上,或者把某个DSE连接到另一个DSE上。
- They also meet the digital data conversion requirements for many other communications applications. 它们还能够满足许多其它通信应用对数字数据转换的要求。
- The first goal was that the API should allow the annotation of arbitrary digital data. 第一个目标是,API应该允许任意数字数据的注释。
