“公共交换电话网”的概念、定义、翻译、参考文献-科学参考

单词	公共交换电话网
释义	公共交换电话网 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。
随便看	yellow mud drum yellow news yellow patch yellow phosphorus yellow pond turtle yellow prussiate of potash yellow resident registration Yellow River Yellow River Cantata Yellow River Conservancy Commission of the Ministry of Water Resources Yellow River Conservancy Press Yellow River diversion over Huaihe river Yellow River estuary Yellow River flood in 1958 Yellow River flood in 1982 Yellow River Flows to the East Yellow River Institute of Hydraulic Research yellow River Levee Yellow River of Ningxia Huizu Zizhiqu Yellow River Research Association Yellow River to Qingdao project Yellow River water allocation in 1987 Yellow River Yellow Earth Yellow Race yellow-sage Yellow Sea bottom cold water

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。