公用交换数字数据业务的英文

• psdds public switched digital data service

• 公用    for public use; public; comm ...
• 交换    exchange; swap; interchange; ...
• 数字    figure; digit; numeral; char ...
• 数据    data; record; information
• 业务    vocational work; professiona ...
• 数字数据业务    digital data service dds
• 分组交换数据业务    psds packet switched data service
• 综合交换数据业务    isds integrated switched data service
• 数字数据业务（北美）    dds digital data service
• 中指定的公用交换数据网    psdn
• 数字数据业务衔接器    ddsa digital data service adapter
• 专用电路数字数据业务    private circuit digital data service
• 分组交换数字数据网    packet switched digital data network
• 数字数据交换业务    digital data switching service; switched digital data service
• 数字数据交换    ddx digital data exchange
• 数字数据电话业务    dds
• 数字数据电路业务    digital data circuit service
• 数字数据交换包    ddx-digital data exchange - packet
• 数字数据交换机    digital data exchange
• 数字数据交换器    ddc; digital data converter
• 数字数据交换网络    digital data exchange network
• 公用电路交换数据网    circuit switched public data network cspdn
• 中国公用分组交换数据网    china public allocation exchangeability; chinapac china public allocation changeability
• 公用交换    public exchange
• 公用交换机    public exchange