| Subject | English | German |
| chem. | deuterium oxide upgrading system | Deuteriumoxid-Anreicherungsanlage |
| nucl.phys. | heavy water upgrade systems | Systeme zur Anreicherung oder Reinigung von Schwerem Wasser |
| comp., MS | system upgrade | Systemupgrade (An upgrade of a system from an existing or older version to a newer or more recent version) |
| tech. | system upgrade | hochrüsten |