公用交换的英文

• public exchange

• 公用    for public use; public; comm ...
• 交换    exchange; swap; interchange; ...
• 公用交换机    public exchange
• 公用交换网    public switched network psn
• 公用交换网络    public switch network; public switched network
• 公用交换电话网    pstn public switched telephone network; public switched telephone network
• 公用交换电话网络    pstn(public switched telephone network; public switched telephone network
• 公用交换机中继线    public exchange trunk
• 公用交换式电话网    pstn(public switched telephone network; pstn: public switched telephone network
• 公用交换数字数据业务    psdds public switched digital data service
• 中指定的公用交换数据网    psdn
• 公用交通    common transport
• 局用交换机    office switch; public spc
• 试用交换局    trial exchange
• 私用交换机    private branch exchange pbx; private branch exchange, pbx
• 通用交换机    universal exchange
• 通用交换台    universal switchboard
• 信用交换    credit interchange
• 应用交换    appliationswitch
• 专用交换机    pbx; px private exchange
• 专用交换台    private branch switchboard
• 专用交换网    pbx:private branch exchange; private switched network
• 备用交换功度    emergency maximum transfer capability
• 备用交换设备    stand by switching equipment
• 时间复用交换    switching, time multiplexed (tms); time multiplexed switching

• Firstly , the task , structure , technology and function of the existing dispatch system were introduced , whose key technology is based on the tdm and time division switch like pstn . further , the developing direction of pstn is based on ip , the pocked switch system and network , and also the dispatch system of the manned space flight launch base will transmit multimedia information on ip
  首先，介绍了现有调度系统的任务、结构、技术和功能，可以看出，其技术核心是时分多路复用和时分交换技术，现在公用交换电话网( pstn )正向基于ip的包交换系统和网络发展，载人航天发射场调度系统也将利用ip网络技术传输多媒体指挥信息。
• The main principle of this system is integrated the handwritten importation technique into the industry product . the hand - writing dot matrix which is collected by touch - screen , and was transferred to remote server terminal using public switch telephone network via modem . the recogonition process is progress in the server then send the result to datbase in text mode
  该系统的工作原理是将手写输入技术集成到工业级产品中，用触摸屏实现手写输入，通过嵌入式调制解调器拨号上网，利用公用交换电话网将手写点阵数据传送给远端企业服务器，在服务器上进行手写数据的识别，识别结果以文本数据格式进入管理数据库。