 |
| |||
| Quecksilberbogen m | |||
| Quecksilberdampf m; Quecksilberlichtbogen m | |||
| mercury arc: 17 phrases in 9 subjects |
| Electric traction | 1 |
| Electronics | 3 |
| General | 1 |
| Measuring instruments | 5 |
| Medical appliances | 1 |
| Microelectronics | 1 |
| Microscopy | 1 |
| Optics branch of physics | 2 |
| Technology | 2 |