英语词汇“public switched telephone network”的中英文释义、用法、翻译及短语词组-英汉翻译词典

单词	public switched telephone network
释义	public switched telephone network 释义公用电话交换网络行业词典铁道公用电话交换网???
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英汉翻译词典包含4367426条英汉汉英翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习的有利工具。

public switched telephone network