“public switched telephone network，PSTN”的概念、定义、翻译、参考文献-科学参考

单词	public switched telephone network，PSTN
释义	public switched telephone network，PSTN Encyclopedia 工学公共交换电话网释 public switched telephone network，PSTN公共交换电话网由国家电信部门统一管控的，面向所有人使用的全球语音通信公共网络系统。工学通信系统释 public switched telephone network，PSTN公用交换电话网进行交互型话音通信、开放电话业务的公众网。是一种全球语音通信电路交换网络。
随便看	left congruence left congruence rejection left congruent element left continuity left-continuous left-continuous function left-continuous process left coperfect topological ring left coprime elements left-corner parsing method left coronary artery left coset left coset decomposition left coset space left decomposition left delimiter of an entry left denominator left derivation left derivative left derived functor left differentiability left differentiable function left differential left differential coefficient left dimension

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