international phototelegraph call 国际传真呼叫

international phototelegraph network 国际传真网络

international phototelegraph position 国际传真座席

international phototelegraph service 国际传真业务

phototelegraph apparatus 相片传真机

International Phototelegraph Terminal Center 国际传真终端中心

booked phototelegraph call 挂号传真电报

private phototelegraph network [通信] 专用传真电报网

Standardization of phototelegraph apparatus 相片传真机的标准化