 |
| |||
| Betriebserde f; Systemmasse f | |||
| system ground: 30 phrases in 12 subjects |
| Agriculture | 2 |
| Antennas and waveguides | 1 |
| Communications | 4 |
| Construction | 3 |
| Energy industry | 2 |
| Environment | 1 |
| General | 3 |
| Information technology | 1 |
| Measuring instruments | 1 |
| Optics branch of physics | 1 |
| Technology | 2 |
| Transport | 9 |