| Subject | English | German |
| tech. | module and | Und-Glied , und-Glid (schaltungstechnisch) |
| tech. | module and | Und-Modul , und-Modul (geraetetechnisch) |
| meas.inst. | system of analogue electric modules and units for information transmission and handling | ursadyn (ursatron and ursamat) |
| meas.inst. | system of digital electric modules and units for information transmission and handling | ursalog (ursatron and ursamat) |