电话通讯单元
telephone communication units
电话通讯工业
telephone communication industry
电话通讯系统
Telephone communication system
电话通讯装置
telephone communication unit
广域电讯电话业务
wide area telecommunications telephone service
Watts
模拟电话通话
simulate telephone communication
市内电话电话号码配换选号
Selection or Change of Telephone Number
《陆海军联合无线电话电报规程》
Joint Army and Navy Radiotelegraph and Radiotelephone Procedure
PHS个人手持电话通信系统
PHS personal handy-phone system
帮流电话电路
booster telephone circuit
超越地平线无线电通讯
radio communication beyond the horizon
地毯下的电话电缆
UTC Undercarpet Telephone Cable