PSTN

英　　美　　

(Public Switched Telephone Network)公共开关电话网络; 一种常用旧式电话系统

PSTN的相关资料：

临近单词

PST PSt/CdS psthogenesis pstella alta PST histogram PSTN data traffic PST-DVB microsphere Psteering column gear change PSTN and Internet integration PST PLASMA solidification of tonsil PSTN Public Switch Telephone Network

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