英语词汇public switched telephone networks怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
Introduces a remote monitoring-measuring system used for environmental protection based upon PSTN (Public Switched Telephone Networks).
介绍了基于PSTN(公共程控交换电话网络)的环保远程监测系统。
2
The call forwarding sample demonstrates the call forwarding feature typically seen in public switched telephone networks, but it USES a SIP network.
Call Forwarding示例显示了访问转寄的特性，该特性一般见于公共交换电话网络，但是它使用了一个SIP网络。
3
The limited transmission rate available on the Public switched telephone network (PSTN) and on wireless networks presents a significant challenge to digital video communications.
这些应用对传输速率有限的公共交换电话网(PSTN网)和无线网络提出了重大挑战。

单词	public switched telephone networks
释义	public switched telephone networks 简明释义公用交换电话网路网络释义短语 1 public switched telephone networks pstn 公共程控交换电话网络双语例句 1 Introduces a remote monitoring-measuring system used for environmental protection based upon PSTN (Public Switched Telephone Networks). 介绍了基于PSTN(公共程控交换电话网络)的环保远程监测系统。 2 The call forwarding sample demonstrates the call forwarding feature typically seen in public switched telephone networks, but it USES a SIP network. Call Forwarding示例显示了访问转寄的特性，该特性一般见于公共交换电话网络，但是它使用了一个SIP网络。 3 The limited transmission rate available on the Public switched telephone network (PSTN) and on wireless networks presents a significant challenge to digital video communications. 这些应用对传输速率有限的公共交换电话网(PSTN网)和无线网络提出了重大挑战。
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