| Subject | English | German |
| meas.inst. | fixed-zero system | Bezugsmaßsystem (machine tool control) |
| CNC | fixed zero system | Bezugsmassystem |
| automat. | floating-zero system | Nullschwebungssystem |
| meas.inst. | floating-zero system | Kettenmaßsystem (machine tool control) |
| automat. | floating-zero system | Kettenmassystem |
| phys. | zero system | Nullsystem |