公共交换电话网 meaning in English

pstn public switched telephone network
public switch telephone network
public switched telephone network

Pstnpublic switched telephone network
公共交换电话网
Alarm systems . alarm transmission systems and equipment . part 1 - 4 : requirements for systems with voice communicators using the public switched telephone network
报警系统.报警传输系统和设备.第1 - 4部分:使用公共交换电话网有声发报机系统要求
To be successful , internet faxing must provide reliability and performance equal to or better than traditional public switched telephone network faxing
为了获得成功，因特网传真必须提供与传统的公共交换电话网传真相同、甚至更好的可靠性和性能。
Alarm systems . alarm transmission systems and equipment . part 1 - 3 : requirements for systems with digital communicators using the public switched telephone network
报警系统.报警传输系统和设备.第1 - 3部分:使用公共交换电话网带数字发报机的系统要求
Alarm systems . alarm transmission systems and equipment . part 2 - 4 : requirements for equipment used in systems with voice communicators using the public switched telephone
报警系统.报警传输系统和设备.第2 - 4部分:使用公共交换电话网有声发报机的系统用设备要求

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