“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	nucleic acid self-assembly nucleic acids encoding nucleicacids invasive analysis nucleic acid solid-phase synthesis nucleic acid-stable isotope probing technique nucleic acid stem-loop structure nucleic acid structure nucleid nuclei nervorum cranialium nuclei pulvinares nucleobase nucleocapsid nucleochronology nucleocosmochronology nucleo-cytoplasmic interaction nucleo-cytoplasmic large DNA virus，NCLDV nucleofuge nucleogenesis nucleogenesis of element nucleogenesis (of elements) nucleohistone nucleoid nucleolar chromatin nucleolar dominance nucleolonema

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