“公用交换电话网”的概念、定义、翻译、参考文献-科学参考

单词	公用交换电话网
释义	公用交换电话网 Encyclopedia 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。 Computer 网络与数据通信协议体系与组成结构释文 public switched telephone network公用交换电话网
随便看	leather splitting Leave at night leave for west Leaves Fall in Chang'an Leaves of Grass leaves patterns leave the land but not the native country leaving group Leaving Shoes leaving the country within a time limit leaving velocity loss Lebagou Yanhua Lebanese Lebanese Drama Lebanese music Lebanon Lebanon, cinema in Lebanon Mountains Lebedev Lebedev crater Lebedev, Pyotr Nikolayevich Lebedev transform Lebedinskiy crater lebenswelt Lebesgue

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。