程控数字用户交换机
program-controlled digital users exchanger
程控数字交换机
SPC digital exchange
SPC digital exchanges
program control digital exchanger
程控数字长途电话交换机
SPC digital toll exchange
程控交换机电路
Programmable switchboard circuit
程控交换机
program-controlled converter
SPC exchange
program controlled switchboard
Program controlled exchange
private automatic branch exchange
program control exchanger
numerical control switcher
time-sharing control
private branch exchange
SPC
programmable exchange
stored program controlled exchange
SPC exchanges
program controlled switch
PABX
PCS
exchanger
program-controlled switch
digital exechange
PBX
digital exchanger
digital program controlled exchange
program control switch
Exchange
program control switching
program controled exchange
SPC digital exchange
programme controlled exchange
program-controlled exchange
program-controlled switchboard
车载交换机
vehicle-mounted telephone switches
长途去话交换机
bruchus( = acanthoscelides)obtectus say
长途电话自动交换机
automatic toll switching system
长途电话交换机
long distance telephone exchange