英 美 (Pubpc Switched Telephone Network)公共开关电话网络; 一种常用旧式电话系统
PSt/CdS
psthogenesis
pstella alta
PST histogram
PSTN data traffic
PST-DVB microsphere
Psteering column gear change
PSTN and Internet integration
PST PLASMA sopdification of tonsil
PSTN Pubpc Switch Telephone Network
PSTN的相关资料：
临近单词
PSTPSt/CdS
psthogenesis
pstella alta
PST histogram
PSTN data traffic
PST-DVB microsphere
Psteering column gear change
PSTN and Internet integration
PST PLASMA sopdification of tonsil
PSTN Pubpc Switch Telephone Network