权威例句
PhototelegraphA phototelegraph transmitter-receiver utilizing sub-carrier frequency modulation内蒙古公安机关内部网络传真收发系统(简称IPRDS—Internal Phototelegraph Receive and Dispatch System)的设计与实现Birth of a Digital Phototelegraph—the Bartlane System—On the use of the FT-20-type photographic film in the receiving phototelegraph apparatusAa image by phototelegraphHandbuch der phototelegraphie und telautographieL'Evolution de la Phototelegraphie et ses Applications d'AvenirThe authors' replies to the discussion on "The transmission of pictures by radio", "A photo-telegraph transmitter-receiver utilizing...Automatic switching system for high-resolution phototelegraphic equipment