machine driven switching system
机动制自动电话交换机
computer telephone exchange
电脑自动电话交换机
crossbar automatic telephone system
纵横制自动电话交换机
unit automatic exchange
内部自动电话交换机
private automatic telephone exchange
专用自动电话交换机
code switch automatic telephone system
码条式自动电话交换机
identifier circuit
(自动电话交换机的) 识别电路
all relay automatic telephone system
全继电器制自动电话交换机
step-by-step system local automatic telephone exchange
步进制市内用自动电话交换机
concourse-connection longitudinal-transverse auto-telephone exchange
汇接用纵横制自动电话交换机
Western panel type automatic telephone switch board
西部板式自动电话交换机
Technical requirements of digital SPC automatic telephone exchange
GB/T15542-1993数字程控自动电话交换机技术要求
automatic local exchange
市内电话自动交换机
automatic toll switching system
长途电话自动交换机
automatic switching of telegraph and telephone
电报-电话自动交换
crossbar private automatic branch exchange system
纵横制自动电话小交换机
automatic telex exchange
自动用户电报交换机
electronic multiple automatic exchange
电子复式自动交换机
