实验电子控制自动交换机
experimental electronic controlled automatic switch board
长途电话自动交换机
automatic toll switching system
程控数字自动交换机
PABX:PrivateAuntomaticBranchExchange
电传打字机自动交换设备
automatic teletypewriter switching equipment
电子复式自动交换机
electronic multiple automatic exchange
电子自动交换机
air start valve
electronic anutomatic exchange
electronic automatic exchange
EAX
面板型自动交换机
panel type automatic switchboard
农村电子自动交换机
REAX Rural Electronic Automatic Exchange
农村自动交换机
RAX Rural Automatic Exchange
私用自动交换机
battered post
private automatic exchange
Pax
用户专用自动交换机
private automatic branch exchange
用户自动交换机
Private Automatic Branch Exchange， PABX
private automatic branch exchange
PABX
专用自动交换机
buckling modal
PABX
dial private branch exchange
private automatic exchange